Jump to content

Search the Community

Showing results for tags 'trackway'.

More search options

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. carcharodon, pliocene, cypresshead formation, florida.
  • Search By Author

Content Type


  • Fossil Discussion
    • General Fossil Discussion
    • Fossil Hunting Trips
    • Fossil ID
    • Is It Real? How to Recognize Fossil Fabrications
    • Partners in Paleontology - Member Contributions to Science
    • Questions & Answers
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Member Fossil Trades Bulletin Board
    • Member-to-Member Fossil Sales
    • Fossil News
  • Gallery
  • Fossil Sites
    • Africa
    • Asia
    • Australia - New Zealand
    • Canada
    • Europe
    • Middle East
    • South America
    • United States
  • Fossil Media
    • Members Websites
    • Fossils On The Web
    • Fossil Photography
    • Fossil Literature
    • Documents


  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Sir Knightia's Blog
  • Terry Dactyll's Blog
  • shakinchevy2008's Blog
  • MaHa's Blog
  • Stratio's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • Lindsey's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Back of Beyond
  • St. Johns River Shark Teeth/Florida
  • Ameenah's Blog
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • nicciann's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • maybe a nest fossil?
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • xenacanthus' Blog
  • barnes' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • Emily's MotE Adventure
  • farfarawy's Blog
  • Microfossil Mania!
  • A Novice Geologist
  • Southern Comfort
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • Stocksdale's Blog
  • andreas' Blog test
  • fossilman7's Blog
  • Books I have enjoyed
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Hihimanu Hale
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • TyrannosaurusRex's Facts
  • PaleoWilliam's Blog
  • The Paleo-Tourist
  • The Community Post
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101


  • Calendar


  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Found 21 results

  1. I found these Rhynchosauroides trace fossil trackways well-defined in the Triassic red bed sedimentary deposits in the Newark Basin in southeastern Pennsylvania. Lincoln cent shows scale.
  2. Dinosaur Tracks

    Thought I would share some of my Acrocanthosaurus tracks in my collection from Texas. These are from the Glen Rose Formation. Anyone who has dino tracks, please feel free to post them here on this thread too...would love to see them! The associated pair are big...both over 20 inches long.
  3. I have recently been looking at some of my photos from trips and found photos of when I was in Alberta in 2018. I saw a photo of a Hadrosaur footprint from a trackway in Dinosaur Provincial Park that me and my brother found. I also read not to long ago that no big trackways have been found in this area so I decided to give the information and location to the Palaeontologist at the Royal Tyrrell Museum in Drumheller, Alberta. I was responded by Dr. Caleb Brown, he told me that I was most likely right and it was probably Hadrosaur. I am currently waiting for him to reply again to see what he thinks about the other information of the trackway and footprint that I gave him. One of the footprints outlined in the photo with pen.
  4. I am considering buying this fossil offered online but it's NOT on our "favorite" auction site- just straightforward purchases. I really like this, and it's not QUITE up to what is not affordable for me. It is offered as an arthropod trackway in hyporelief.
  5. Ireland's Carboniferous Fossils

    The strange creatures that lived in Ireland millions of years ago, RTE Radio, Wednesday, 13 Nov 2019 https://www.rte.ie/brainstorm/2019/1113/1090543-the-strange-creatures-that-lived-in-ireland-millions-of-years-ago/ 385-million-year-old footprints in Co Kerry represent turning point in evolution, Michael Dorgan, Irish Central, June 7, 2019 https://www.irishcentral.com/roots/valentia-island-tetrapod-footprints Yours, Paul H.
  6. The race to rescue 95-million-year-old dinosaur footprints from the elements in the Queensland outback. Belinda Smith for The Chase, ABC Science, Australian Broadcasting Corporation https://www.abc.net.au/news/2019-02-14/the-race-to-save-wintons-dinosaur-footprints/10578212 Winton footprint fossils saved from floods By Belinda Smith on AM, Australian Broadcasting Corporation https://www.abc.net.au/radio/programs/am/winton-footprint-fossils-saved-from-floods/10810194 Related paper is: Romilio, A. and Salisbury, S.W., 2011. A reassessment of large theropod dinosaur tracks from the mid-Cretaceous (late Albian– Cenomanian) Winton Formation of Lark Quarry, central-western Queensland, Australia: a case for mistaken identity. Cretaceous Research, 32(2), pp.135-142. https://dinosaurs.group.uq.edu.au/files/2119/Romilio_Salisbury_2011.pdf https://www.researchgate.net/publication/222618836_A_reassessment_of_large_theropod_dinosaur_tracks_from_the_mid-Cretaceous_late_Albian-Cenomanian_Winton_Formation_of_Lark_Quarry_central-western_Queensland_Australia_A_case_for_mistaken_identity https://www.researchgate.net/profile/Anthony_Romilio Yours, Paul H.
  7. Okay so I found this specimen at the Taughannock Falls in Ithaca New York. I found it at the edge of the gorge which consists of Shale, composed of slit and clay that fell onto lime mud and hardened into rock. I've done some research and it appears to be a Brittle star trace fossil formed by their arm grazing the sand floor. Although, these Brittle Star fish traces are known as "Pteridichnites biseriatus" and they have only been discovered so far in upper Devonian shales out in western and eastern Virginia. I'm not an expert but to my knowledge the Ithaca geological formation is Devonian and was slowly covered by sand. Is it possible that the Brittle Star fish once roamed in the ancient sea now known as "Taughannock falls" today? Because a research team is trying to find this specimen and they are wondering if anyone has discovered it. Edit: Im referring to the dotted trackway. check this link out for more information. http://www.wvgs.wvnet.edu/www/news/Pteridichnites.htm
  8. Hello everyone. I am an incredibly novice fossil hunter from Pennsylvania. From where I live, it is heavy Carboniferous territory. One of the items on my bucket list is to eventually find something from a temnospondyl, even if it is nothing more than a trackway or even better - a bone fragment! Would anyone be willing to share with me advice on what to look for / or what has helped them in finding anything from a Temnospondyl or Lepospondyl? Do they appear more in certain rocks than others? I live in the Pittsburgh area, near where Fedexia was discovered ten years ago. I'm hoping to eventually find something related to Fedexia or another temnospondyli. From what I'm realizing, these little guys are hard to come by. Any advice? Thanks everyone!
  9. Hello everyone! I am a total noob to all of this and just joined today! I've been on this website before and everyone seems very knowledgeable and helpful. Having said that, can someone help me out with this specimen? I tried to look this up online and ended up confusing myself. Initially I thought it may be referred to as Diplichnites left behind by a millipede, but another Google search led me in the direction of possibly Protichnites left behind by trilobites. Is there any way to tell (if any) what this is or what could have made it? I believe this to be from the Carboniferous, being as this was found in Beaver Pennsylvania just north of Pittsburgh in a shallow creek. I can also say from studying it that one track seems to be more like flat rectangles (trackway on the left), while the other two are more like little dots(trackway on the right. Could it be from two separate animals? Thank you all for your help!
  10. Might this be a trackway?

    This stone came out of a stream-bed, so no certain provenance; BUT - I'm sitting on the top of the Oneota dolomite, in extreme SE Fillmore County, SE Minnesota. Ever since I moved here, I've found blocky chunks of what I always called quartzite in nearby stream beds; often with ripple marks like this: Sorry about lack of scale, but if you look at the top of the stone, you can see a northern pin oak leaf - it's about 4 inches long. I was told when I arrived that my Oneota dolomite was overlain by the St. Peter sandstone- which has no record of rippled silicified layers. Two years ago, asking among friends on Facebook, I was plugged into 3 different and authoritative geologists, who suggested my stone had to be from the Sioux quartzite- located well north, and had to have been transported by an older glaciation. That quartzite is supposed to be pink when freshly fractured- and I did indeed find some precisely pink stone eventually; verified as the right color. I stick by my "quartzite" rather than "sandstone", and you can see why. However. Several things did not add up, and I kept the ID tentative in my mind. Then I started finding dolomitic marble- not known in the literature, and indicative of some very active silicification episodes locally- which might make quartzite as well as marble. Digging further, I found a few references that say my own bit of Minnesota has the New Richmond sandstone on top of the Oneota dolomite; just locally. And eventually found a reference that in Indiana, there are rippled sandstones from the New Richmond, so highly silicified that "some call them quartzites". That makes more sense from all aspects- the quartzite I find is so abundant it could easily be a layer overlaying my dolomite, and surviving erosion far better, so quite evident. Also- the Sioux quartzite is measured at around 1.2 to almost 2 billion years old - too old for any critter fossils. I have not yet found any fossils in my quartzite - but it's really metamorphosed hard, and some deformation was going on at the time as some strata are curved; in the Oneota it's strictly flat. The New Richmond is still classified as "lower Ordovician"; somewhere around 450 MYA, I think. There were critters. This next image is the right upper corner of the rippled stone, rotated for a different perspective: Next; same stone; rotated right so you don't have to break your neck looking: and last the same only with "definition" and "sharpness" enhanced as far as I can with my cheapo software. The photo of the entire stone shows you that the rest of the ripples show no disturbances at all; it's only this corner; which looks just a bit like - feet? Hopping along, then 'taking flight"? or if going the other way, landing, causing that different mark? Also note; the "entire stone" photo is of the stone slightly wet; changing some visible details. I have these same photos at about 6 megabytes each, if that might help at some point, and of course I have the stone if you have suggestions for improved images. What do you all think; is there any chance this is actually a trackway- that should perhaps be shown to the real expert folk? I just can't quite dismiss it; there are several aspects that repeat regularly... Theoretically, SE Minnesota was mostly marine tidal flats at this point- the source of the ripples. I eagerly await your thoughts.
  11. If you are ever in Alaska and want to check out something cool this paper reports details of a unique association of hadrosaur and therizinosaur tracks found in the Late Cretaceous lower Cantwell Formation, Denali National Park, central Alaska Range, Alaska https://www.nature.com/articles/s41598-018-30110-8
  12. Mammoth steps found at Fossil Lake Ancient trackways discovered in Lake County By Kurt Liedtyke, Herald and News, Oregon https://www.heraldandnews.com/news/local_news/mammoth-steps-found-at-fossil-lake/article_72c659d4-38f6-545f-b7a2-5718be8c4d51.html Rare Mammoth Tracks Reveal an Intimate Portrait of Herd Life Researchers piece together a 43,000-years-old tableau of an injured adult and concerned young, Smithsonian Magazine https://www.smithsonianmag.com/science-nature/rare-mammoth-tracks-paint-intimate-portrait-pachyderm-group-life-180968256/ Retallack, G.J., Martin, J.E., Broz, A.P., Breithaupt, B.H., Matthews, N.A. and Walton, D.P., 2018. Late Pleistocene mammoth trackway from Fossil Lake, Oregon. Palaeogeography, Palaeoclimatology, Palaeoecology.https://doi.org/10.1016/j.palaeo.2018.01.037 https://www.sciencedirect.com/science/article/pii/S0031018217312154 Yours, Paul H.
  13. Hey guys finally got a chance to finish the first print on the tracks Im casting. In theory they are Acrocanthrosaurus tracks and there are a total of 6 tracks (may be more buried). Anywho I got the original cast done then made a negative mold. Im now making positive casts of the initial track. Im still messing with the color I want but Im pretty close
  14. Fossil Footprints of Early Human Ancestor Stolen from Crete By Tasos Kokkinidis,Sept. 14, 2017 http://greece.greekreporter.com/2017/09/14/fossil-footprints-of-early-human-ancestor-stolen-from-crete/ Man charged with antiquities theft over fossils Ekathimerini News, September 15, 2015 http://www.ekathimerini.com/221719/article/ekathimerini/news/man-charged-with-antiquities-theft-over-fossils The footprints are discussed in: Fossil footprints challenge established theories of human evolution, PhysOrg, Uppsala University, August 31, 2017, (Has overall picture of trackways.) https://phys.org/news/2017-08-fossil-footprints-theories-human-evolution.html 5.7-Million-Year-Old Human Footprints Found in Crete, Greece, Greek Reporter, September 2, 2017. http://greece.greekreporter.com/2017/09/02/5-7-million-year-old-human-footprints-found-in-crete-greece/ Controversial footprint discovery suggests human-like creatures may have roamed Crete nearly 6m years ago by Matthew Robert Bennett And Per Ahlberg, The Conversation, September 1, 2017 https://phys.org/news/2017-09-controversial-footprint-discovery-human-like-creatures.html The paper about these footprints is: Gierliński, G.D., Niedźwiedzki, G., Lockley, M.G., Athanassiou, A., Fassoulas, C., Dubicka, Z., Boczarowski, A., Bennett, M.R. and Ahlberg, P.E., 2017. Possible hominin footprints from the late Miocene (c. 5.7 Ma) of Crete?. Proceedings of the Geologists' Association. http://www.sciencedirect.com/science/article/pii/S001678781730113X PDF file at http://eprints.bournemouth.ac.uk/29687/ Yours, Paul H.
  15. I was looking at the latest news and this popped up which I thought was very cool that something like this exists "A group of paleontologists from the University of Queensland and James Cook University has documented the most diverse assemblage of dinosaur tracks in the world on the north-western coast of Western Australia." http://www.sci-news.com/paleontology/worlds-most-diverse-collection-dinosaur-footprints-04740.html The paper is part of SVP memoir series #16. Not sure if one can purchase this journal, it's pretty nice and if this interest you a hard bound copy is the way to go. Here are a few highlights Of the tracks examined, 150 could be identied and are assignable to a least eleven and possibly as many as 21 different track types: ve different types of theropod tracks, at least six types of sauropod tracks, four types of ornithopod tracks, and six types of thyreophoran tracks. Eleven of these track types can formally be assigned or compared to existing or new ichnotaxa, whereas the remaining ten represent morphotypes that, although distinct, are currently too poorly represented to confidently assign to existing or new ichnotaxa. Unfortunately the trackways are in a tidal area and will eventually disappear Here are some of the tracks found with descriptions
  16. Ancient beasts roamed this secret spot in Death Valley Washington Post, Dcember 2, 2016 https://www.washingtonpost.com/national/health-science/secret-spot-in-death-valley-contains-evidence-of-ancient-animals/2016/12/02/7542aafe-b722-11e6-a677-b608fbb3aaf6_story.html Death Valley's 'secret' fossil canyon could finally be opened to the public after being hidden for almost a century 1. Remote fossil hotbed covers an area of around five sq miles (12.9 sq km) 2. The area was closed to the public in 1940 to preserve the cache of tracks 3. The US National Park Service, which is celebrating its centennial year, has been called on to open up the forbidden area to visitors http://www.dailymail.co.uk/sciencetech/article-3989588/Death-Valley-s-secret-fossil-canyon-finally-opened-public-hidden-century.html Death Valley's hidden fossil canyon slowly opens to public San FranciscoGate, November 17, 2016 http://www.sfgate.com/news/article/Death-Valley-s-hidden-fossil-canyon-slowly-10621796.php Yours, Paul H.
  17. Tetrapod Trackway

    Nothing to add.
  18. Arthropod Trackways

    Nothing to add.
  19. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since June 9, 2018. Tracks and Trackways Precambrian Chen, Z., et al. (2018). Late Ediacaran trackways produced by bilateran animals with paired appendages. Science Advances, 4:eaao6691. (Thanks to Oxytropidoceras for finding this one!) Liu, A.G., D. Mcllroy and M.D. Brasier (2010). First evidence for locomotion in the Ediacaran biota from the 565 Ma Mistaken Point Formation, Newfoundland. Geology, Vol.38, Number 2. Cambrian Alpert, S.P. (1976). Trilobite and Star-Like Trace Fossils from the White-Inyo Mountains, California. Journal of Paleontology, Vol.50, Number 2. Boyd, D.W. (2010). Morphology and taphonomy of an exceptional trackway from the Flathead Sandstone (Middle Cambrian) of Wyoming. Rocky Mountain Geology, Vol.45, Number 1. Burton-Kelly, M.E. (2005). An Analysis of Multiple Trackways of Protichnites Owen, 1852, from the Potsdam Sandstone (Late Cambrian), St. Lawrence Valley, NY. Bachelors Thesis - St. Lawrence University. Burton-Kelly, M.E. and J.M. Erickson (2010). A New Occurrence of Protichnites Owen, 1852, in the Late Cambrian Potsdam Sandstone of the St. Lawrence Lowlands. The Open Paleontology Journal, 3. Getty, P.R. (2007). Paleobiology of the Climactichnites Trackmaker: An Enigmatic Late Cambrian Animal Known Only from Trace Fossils. Masters Thesis - University of Massachusetts Amherst. Hagadorn, J.W. and A. Seilacher (2009). Hermit arthropods 500 million years ago? Geology. Hoxie, C.T. (2005). Late Cambrian Arthropod Trackways in Subaerially Exposed Environments. Incentives to Simplify a Problematic Ichnogenus. B.A. Honors Thesis - Amherst College. Minter, N.J., M.G. Mángano and J.-B. Caron (2012). Skimming the surface with Burgess Shale arthropod locomotion. Proc.R.Soc. B, 279. Radwanski, A. and P. Roniewicz (1972). A long trilobite-trackway, Cruziana semplicata Salter, from the Upper Cambrian of the Holy Cross Mts. Acta Geologica Polonica, Vol.22, Number 3. Silurian Gouramanis, C. and S. McLoughlin (2016). Siluro-Devonian trace fossils from the Mereenie Sandstone, Kings Canyon, Watarrka National Park, Amadeus Basin, Northern Territory, Australia. Alcheringa, 40. Hanken, N.-M. and L. Størmer (1975). The trail of a large Silurian eurypterid. Fossils and Strata, Number 4. Knaust, D. and N.J. Minter (2018). The fish swimming trace Undichna unisulca from the Silurian of Sweden: probably the oldest vertebrate locomotion trace fossil. Lethaia. Metz, R. (2013). An Exceptional Occurrence of the Trace Fossil Cruziana on a Bedding Surface of a Core of the Bloomsburg Red Beds (Silurian), Northwestern New Jersey. Northeastern Geoscience, Vol.31, Number 1. Wright, J.L., et al. (1995). A subaerial arthropod trackway from the Upper Silurian Clam Bank Formation of Newfoundland. Can.J. Earth Sci., 32. Devonian Braddy, S.J. and A.R.C. Milner (1998). A large arthropod trackway from the Gaspé Sandstone Group (Middle Devonian) of eastern Canada. Can.J. Earth Sci., 35. Draganitis, E., S.J. Braddy and D.E.G. Briggs (2001). A Gondwanan Coastal Arthropod Ichnofauna from the Muth Formation (Lower Devonian, Northern India): Paleoenvironment and Tracemaker Behavior. Palaios, Vol.16. Draganitis, E., B. Grasemann and S.J. Braddy (1998). Discovery of abundant arthropod trackways in the ?Lower Devonian Muth Quartzite (Spiti, India): implications for the depositional environment. Journal of Asian Earth Science, Vol.16, Numbers 2-3. Lucas, S.G. (2015). Thinopus and a Critical Review of Devonian Tetrapod Footprints. Ichnos, 22. Niedzwiedzki, G., et al. (2010). Tetrapod trackways from the early Middle Devonian period of Poland. Nature, Vol.463/7. Stossel, I., E.A. Williams and K.T. Higgs (2016). Ichnology and depositional environment of the Middle Devonian Valentia Island tetrapod trackways, south-west Ireland. Palaeogeography, Palaeoclimatology, Palaeoecology, 462. Wisshak, M., E. Volohonsky and D. Blomeier (2004). Acanthodian fish trace fossils from the Early Devonian of Spitsbergen. Acta Palaeontologica Polonica, 49(4). Carboniferous Carboniferous Tracks and Trackways - Africa/Middle East Lagnaoui, A., et al. (2018). Late Carboniferous Tetrapod Footprints from the Souss Basin, Western High Atlas Mountains, Morocco. Ichnos, Vol.25, Numbers 2-3. Carboniferous Tracks and Trackways - Europe (including Greenland and Siberia) Higgs, R. (1988). Fish Trails in the Upper Carboniferous of South-West England. Palaeontology, Vol.31, Part 2. Pollard, J., P. Seldon and S. Watts (2008). Trace fossils of the arthropod Camptophyllia from the Westphalian (Carboniferous) rocks of Lancashire, UK and their palaeoenvironmental context. Palaeogeography, Palaeoclimatology, Palaeoecology, 270. Voigt, S. and M. Ganzelewski (2010). Toward the origin of amniotes: Diadectomorph and synapsid footprints from the early Late Carboniferous of Germany. Acta Palaeontologica Polonica, 55(1). Carboniferous Tracks and Trackways - North America Buta, R.J., et al. (2005). Atlas of Union Chapel Mine Invertebrate Trackways and other Traces. In: Pennsylvanian Footprints in the Black Warrior Basin of Alabama. Buta, R.J., A.K. Rindsberg, and D.C. Kopaska-Merkel (eds.), Alabama Paleontological Society Monograph Number 1. Calder, J.H., D. Baird and E.B. Urdang (2004). On the discovery of tetrapod trackways from Permo-Carboniferous redbeds of Prince Edward Island and their biostratigraphic significance. Atlantic Geology, 40. Falcon-Lang, H.J., et al. (2010). Diverse tetrapod trackways in the Lower Pennsylvanian Tynemouth Creek Formation, near St. Martins, southern New Brunswick, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology, In Press. Haubold, H., et al. (2005). Atlas of Union Chapel Mine Vertebrate Trackways and Swimming Traces. In: Pennsylvanian Footprints in the Black Warrior Basin of Alabama. Buta, R.J., A.K. Rindsberg, and D.C. Kopaska-Merkel (eds.), Alabama Paleontological Society Monograph Number 1. Haubold, H., et al. (2005). Interpretation of the Tetrapod Footprints from the Early Pennsylvanian of Alabama. In: Pennsylvanian Footprints in the Black Warrior Basin of Alabama. Buta, R.J., A.K. Rindsberg, and D.C. Kopaska-Merkel (eds.), Alabama Paleontological Society Monograph Number 1. Lucas, S.G. and A.J. Lerner (2005). Lower Pennsylvanian Invertebrate Ichnofossils from the Union Chapel Mine, Alabama: A Preliminary Assessment. In: Pennsylvanian Footprints in the Black Warrior Basin of Alabama. Buta, R.J., A.K. Rindsberg, and D.C. Kopaska-Merkel (eds.), Alabama Paleontological Society Monograph Number 1. Lucas, S.G., et al. (2005). Trackway of a Giant Arthropleura from the Upper Pennsylvanian of El Cobre Canyon, New Mexico. New Mexico Geological Society, 56th Field Conference Guidebook, Geology of the Chama Basin. Martino, R.L. (1991). Limnopus Trackways from the Conemaugh Group (Late Pennsylvanian), Southern West Virginia. J.Paleont., 65(6). Mitchell, R.H. (1931). Fossil Footprints from the Pennsylvanian of Ohio. The Ohio Journal of Science, Vol.XXXI, Number 6. Mossman, D.J. and R.G. Grantham (1999). Vertebrate trackways in the Parrsboro Formation (upper Carboniferous) at Rams Head, Cumberland County, Nova Scotia. Atlantic Geology, Vol.35, Number 3. Sundberg, F.A., et al. (1990). Upper Carboniferous (Namurian) amphibian trackways from the Bluefield Formation, West Virginia, USA. Ichnos, Vol.1. Tanner, L.H. (2013). A Pennsylvanian Tetrapod Trackway from Joggins, Nova Scotia: The Size Continuum of Batrachichnus salamandroides. In: The Carboniferous-Permian Transition. Lucas, S.G., et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 60. Vrazo, M.B., M.J. Benton and E.B. Daeschler (2007). Tetrapod tracks from the Mauch Chunk Formation (middle to upper Mississippian) of Pennsylvania, U.S.A. Proceedings of the Academy of Natural Sciences of Philadelphia, 156. Carboniferous Tracks and Trackways - South America/Central America/Caribbean Bell, C.M. and M.J. Boyd (1986). A Tetrapod Trackway from the Carboniferous of Northern Chile. Palaeontology, Vol.29, Part 3. General Carboniferous Tracks and Trackways Falcon-Lang, H.J., M.J. Benton and M. Stimson (2007). Ecology of earliest reptiles inferred from basal Pennsylvanian trackways. Journal of the Geological Society, London, Vol.164. Romano, M. and P. Citton (2014). Reliability of digit length impression as a character of tetrapod ichnotaxobase: reconsiderations from the Carboniferous-Permian ichnogenus Ichniotherium. Geological Journal, 50(5). Permian Brand, L.R. (1979). Field and Laboratory Studies on the Coconino Sandstone (Permian) Vertebrate Footprints and their Paleoecological Implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 28. Brand, L.R. and J. Kramer (1996). Underprints of vertebrate and invertebrate trackways in the Permian Coconino Sandstone in Arizona. Ichnos, Vol.4. Brand, L.R. and T. Tang (1991). Fossil vertebrate footprints in the Coconino Sandstone (Permian) of northern Arizona: Evidence for underwater origin. Geology, Vol.19. Briggs, D.E.G., et al. (2010). Permo-Triassic arthropod trace fossils from the Beardmore Glacier area, central Transantarctic Mountains, Antarctica. Antarctic Science, 22(2). Chakraborty, A., and H.N. Bhattacharya (2012). Fossil Permian Xiphosurid Trackways from India. Journal Geological Society of India, Vol.80. Citton, P., et al. (2016). Unveiling trampling history through trackway interferences and track preservational features: a case study from the Bletterbach gorge (Redagno, Western Dolomites, Italy). Palaeontologia Electronica, 19.2.20A. da Silva, R.C., F.A. Sedor and A.C.S. Fernandes (2009). Ichnotaxonomy, functional morphology and paleoenvironmental context of Mesosauridae tracks from Permian of Brazil. Revista Brasileira de Geociencias, 39(4). de Klerk, W.J. (2002). A Dicynodont Trackway from the Cistecephalus Assemblage Zone in the Karoo, East of Graaf-Reinet, South Africa. Palaeont.afr., 38. Kubo, T. and M.J. Benton (2009). Tetrapod Postural Shift Estimated from Permian and Triassic Trackways. Palaeontology, Vol.52, Part 5. Lucas, S.G., A.P. Hunt and N. Hotton (1994). The Paleozoic Trackways Scientific Study Report. (246 pages) Mancuso, A.C., et al. (2016). Tetrapod Tracks Taphonomy in Eolian Facies from the Permian of Argentina. Palaios, Vol.31. Marchetti, L., et al. (2015). Revision of a classic site for Permian tetrapod ichnology (Collio Formation, Trompia and Caffaro valleys, N. Italy), new evidences for the radiation of captorhinomorph footprints. Palaeogeography, Palaeoclimatology, Palaeoecology, 433. Tverdokhlebov, V.P., et al. (1997). First Record of Footprints of Terrestrial Vertebrates from the Upper Permian of the Cis-Urals, Russia. Palaeontology, Vol.40, part 1. Triassic Triassic Tracks and Trackways - Africa/Middle East Klein, H., et al. (2011). First occurrence of a Middle Triassic tetrapod ichnofauna from the Argana Basin (Western High Atlas, Morocco). Palaeogeography, Palaeoclimatology, Palaeoecology, 307. Lagnaoui, A., et al. (2016). New discoveries of archosaur and other tetrapod footprints from the Timezgadiouine Formation (Irohalene Member, Upper Triassic) of the Argana Basin, western High Atlas, Morocco - Ichnotaxonomic implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 453. Lagnaoui, A., et al. (2012). Late Triassic Tetrapod-Dominated Ichnoassemblages from the Argana Basin (Western High Atlas, Morocco). Ichnos, 19. Triassic Tracks and Trackways - Asia/Malaysia/Pacific Islands Lu, Z.-s., et al. (2004). Genetic interpretation of fish swimming trails and calculation of fish-body length in Late Triassic Hengshan, Shaanxi Province, China. Science in China, Ser.D Earth Sciences, Vol.47, Number 3. Xing, L.D., et al. (2014). An unusual trackway of a possibly bipedal archosaur from the Late Triassic of the Sichuan Basin, China. Acta Palaeontologica Polonica, 59(4). Xing, L.D., et al. (2013). Chirotherium Trackways from the Middle Triassic of Guizhou, China. Ichnos, 20. Xing, L.D., et al. (2013). Earliest records of theropod and mammal-like tetrapod footprints in the Upper Triassic of Sichuan Basin, China. Vertebrata PalAsiatica, 51(3). Zhang, Q., et al. (2014). Nothosaur foraging tracks from the Middle Triassic of southwestern China. Nature Communications, 5: 3973. Triassic Tracks and Trackways - Australia/New Zealand Pepperell, J. and G. Grigg (1973). A Labyrinthodont Trackway from the Mid-Triassic Near Sydney, New South Wales. Proceedings of the Linnean Society of New South Wales, Vol.99, Part 1. Retallack, G.J. (1996). Early Triassic therapsid footprints from the Sydney Basin, Australia. Alcheringa, 20. Triassic Tracks and Trackways - Europe (including Greenland and Siberia) D'Orazi-Porchetti, S., et al. (2008). Atreipus-like footprints and their co-occurrence with Evazoum from the Upper Carnian (Tuvalian) of the Trentino-Alto Adige. Studi Trent.Sci.Nat., Acta Geol., 83. Dalla Vecchia, F.M. (1996). Archosaurian Trackways in the Upper Carnian of Dogna Valley (Udine, Friuli, NE Italy). Natura Nascosta, Number 20. Fichter, J. and R. Kunz (2013). "Dinosauromorph" tracks from the Middle Buntsandstein (Early Triassic: Olenekian) of Wolfhagen, northern Hesse, Germany. Comunicaoes Geologicas, 100,1. Fuglewicz, R., T. Ptaszynski and K. Rdzanek (1990). Lower Triassic Footprints from the Swietokrzyskie (Holy Cross) Mountains, Poland. Acta Palaeontologica Polonica, 35(3-4). Lallensack, J.N., et al. (2017). Sauropodomorph dinosaur trackways from the Fleming Fjord Formation of East Greenland: Evidence for Late Triassic sauropods. Acta Palaeontologica Polonica, 62(X). Milan, J. and G. Gierlinski (2004). A probable thyreophoran (Dinosauria, Ornithischia) footprint from the Upper Triassic of southern Sweden. Bulletin of the Geological Society of Denmark, Vol.51. Milan, J., L.B. Clemmensen and N. Bonde (2004). Vertical sections through dinosaur tracks (Late Triassic lake deposits, East Greenland) - undertracks and other subsurface deformation structures revealed. Lethaia, Vol.37. Mujal, E., et al. (2017). An archosauromorph dominated ichnoassemblage in fluvial settings from the late Early Triassic of the Catalan Pyrenees (NE Iberian Peninsula). PLoS ONE, 12(4). Reolid, M., et al. (2018). Ichnological evidence of semi-aquatic locomotion in early turtles from eastern Iberia during the Carnian Humid Episode (Late Triassic). Palaeogeography, Palaeoclimatology, Palaeoecology, 490. Schulp, A.S., et al. (2017). A tetrapod swimming traceway from the Triassic of Winterswijk, the Netherlands. Netherlands Journal of Geosciences. Triassic Tracks and Trackways - North America Fraser, N.C. and P.E. Olsen (1996). A New Dinosauromorph Ichnogenus from the Triassic of Virginia. Jeffersoniana, Number 7. Gay, R.J., X.A. Jenkins and T. Lepore (2017). The oldest vertebrate trace fossils from Comb Ridge (Bears Ears National Monument, southeastern Utah). PeerJ Preprints. (not peer reviewed) Hunt, A.P. and S.G. Lucas (2007). Late Triassic Tetrapod Tracks of Western North America. In: Triassic of the American West. Lucas, S.G. and J.A. Spielmann (eds.), New Mexico Museum of Natural History and Science, Bulletin 40. Lockley, M.G. and G.D. Gierlinski (2009). A Grallator-dominated tracksite from the Chinle Group (Late Triassic), Moab, Utah. Geological Quarterly, 53(4). Sullivan, R.M., K. Randall and M. Hendricks (1994). The Graterford Dinosaurs: Tracking Triassic Travelers. Pennsylvania Geology, Vol.25, Number 4. Triassic Tracks and Trackways - South America/Central America/Caribbean da Silva, R.C., et al. (2012). Footprints of large theropod dinosaurs and implications on the age of Triassic biotas from Southern Brazil. Journal of South American Earth Sciences, 39. da Silva, R.C., et al. (2008). Lacertoid footprints from the Upper Triassic (Santa Maria Formation) of Southern Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology, 262. Genise, J.F., et al. (2009). Application of neoichnological studies to behavioural and taphonomic interpretation of fossil bird-like tracks from lacustrine settings: The Late Triassic-Early Jurassic? Santo Domingo Formation, Argentina. Palaeogeography, Palaeoclimatology, Palaeoecology, 272. Marsicano, C.A. and S.P. Barredo (2004). A Triassic tetrapod footprint assemblage from Southern South America: palaeobiogeographical and evolutionary implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 203. General Triassic Tracks and Trackways Brusatte, S.L., G. Niedzwiedzki and R.J. Butler (2011). Footprints pull origin and diversification of dinosaur stem lineage deep into Early Triassic. Proc.R.Soc. B, 278. Hunt, A.P. and S.G. Lucas (2007). The Triassic Tetrapod Track Record: Ichnofaunas, Ichnofacies and Biochronology. In: The Global Triassic. Lucas, S.G. and J.A. Spielmann (eds.), New Mexico Museum of Natural History and Science, Bulletin 41. Klein, H. and S.G. Lucas (2010). Tetrapod footprints - their use in biostratigraphy and biochronology of the Triassic. In: The Triassic Timescale. Lucas, S.G. (ed.), Geological Society, London, Special Publications 334. Kubo, T. and M.J. Benton (2009). Tetrapod Postural Shift Estimated from Permian and Triassic Trackways. Palaeontology, Vol.52, Part 5. Milan, J., et al. (2006). Theropod Foot Movement Recorded By Late Triassic, Early Jurassic and Late Jurassic Fossil Footprints. In: The Triassic-Jurassic Terrestrial Transition. Harris, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 37. Olsen, P.E. and D. Baird (1986). 6. The Ichnogenus Atreipus and its significance for Triassic biostratigraphy. In: The Beginning of the Age of Dinosaurs: Faunal Change Across the Triassic-Jurassic Boundary. Padian, K. (ed.), Cambridge University Press, New York. (Thanks to Troodon for pointing this one out!) Jurassic Jurassic Tracks and Trackways - Africa/Middle East Hadri, M., et al. (2015). Crocodyliform footprints from "les couches rouges" of the Middle Jurassic of Msemrir, High Atlas, Morocco. Geogaceta, 58. Klein, H., et al. (2018). Crocodylomorph, turtle and mammal tracks in dinosaur-dominated Middle-?Upper Jurassic and mid-Cretaceous ichnoassemblages of Morocco. Palaeogeography, Palaeoclimatology, Palaeoecology, 498. Masrour, M. and F. Perez-Lorente (2014). Otozoum trackway in Issil-n-Ait Arbi (Lower Jurassic, Central High Atlas, Morocco). Geogaceta, 56. Mudroch, A., et al. (2011). Didactyl Tracks of Paravian Theropods (Maniraptora) from the ?Middle Jurassic of Africa. PLoS ONE, 6(2). (Read on-line or download a copy.) Schulp, A.S., M. Al-Wosabi and N.J. Stevens (2008). First Dinosaur Tracks from the Arabian Peninsula. PLoS ONE, 3(5). (Read on-line or download a copy.) Sciscio, L., et al. (2017). The first megatheropod tracks from the Lower Jurassic upper Elliot Formation, Karoo Basin, Lesotho. PLoS ONE, 12(10). Wilson, J.A., C.A. Marsicano and R.M.H. Smith (2009). Dynamic Locomotor Capabilities Revealed by Early Dinosaur Trackmakers from Southern Africa. PLoS ONE, 4(10). (read on-line or download from site) Jurassic Tracks and Trackways - Asia/Malaysia/Pacific Islands Gao, Y.-H. (2007). New Dinosaur Footprints from Lower Jurassic of Weiyuan, Sichuan. Vertebrata PalAsiatica, 45(4). Pienkowski, G., et al. (2015). Dinosaur footprints from the Thaiat ridge, and their palaeoenvironmental background, Jaisalmer Basin, Rajastan, India. Volumina Jurassica, XIII(1). Sullivan, C., et al. (2009). A New Occurrence of Small Theropod Tracks in the Houcheng (Tuchengzi) Formation of Hebei Province, China. Vertebrata PalAsiatica, 47(1). Xing, L.-D., J.D. Harris and P.J. Currie (2011). First record of dinosaur trackway from Tibet, China. Geological Bulletin of China, Vol.30, Number 1. Xing, L.-D., J.D. Harris and G.D. Gierlinski (2011). Therangospodus and Megalosauripus Track Assemblage from the Upper Jurassic - Lower Cretaceous Tuchengzi Formation of Chicheng County, Hebei Province, China, and Their Paleoecological Implications. Vertebrata PalAsiatica, Vol. 49(4). Xing, L.-D., et al. (2017). Theropod tracks from the Lower Jurassic of Gulin area, Sichuan Province, China. Palaeoworld, 26. Xing, L.-D., et al. (2016). The first record of Anomoepus tracks from the Middle Jurassic of Henan Province, Central China. Historical Biology, 2016. Xing, L.-D., et al. (2016). New Middle Jurassic dinosaur track record from northeastern Sichuan Province, China. Swiss J.Paleontol., published on-line. Xing, L.-D., et al. (2015). Hints of the Early Jehol Biota: Important Dinosaur Footprint Assemblages from the Jurassic-Cretaceous Boundary Tuchengzi Formation in Beijing, China. PLoS ONE, 10(4). Xing, L.-D., et al. (2014). Sauropod and Small Theropod Tracks from the Lower Jurassic Ziliujing Formation of Zigong City, Sichuan, China, with an Overview of Triassic-Jurassic Dinosaur Fossils and Footprints of the Sichuan Basin. Ichnos, 21. Xing, L.-D., et al. (2013). Two theropod track assemblages from the Jurassic of Congqing, China, and the Jurassic Stratigraphy of Sichuan Basin. Vertebrata PalAsiatica, 51(2). Jurassic Tracks and Trackways - Europe (including Greenland and Siberia) Avanzini, M., L. Pinuela and J.C. Garcia-Ramos (2010). First report of a Late Jurassic lizard-like footprint (Asturias, Spain). Journal of Iberian Geology, 36(2). Avanzini, M., L. Pinuela and J.C. Garcia-Ramos (2008). Theropod Palaeopathology inferred from a Late Jurassic trackway, Asturias (N.Spain). Oryctos, Vol.8. Belvedere, M., et al. (2017). Dinosaur footprints from the top of Mt. Pelmo: new data for Early Jurassic palaeogeography of the Dolomites (NE Italy). Bollettino della Societa Paleontologica Italiana, 56(2). Clark, N.D.L. and J.L. Barco Rodriguez (1998). The First Dinosaur Trackway from the Valtos Sandstone Formation (Bathonian, Jurassic) of the Isle of Skye, Scotland, UK. Geogaceta, Vol.24, Article 20. Conti, M.A., et al. (2005). Jurassic Dinosaur Footprints from Southern Italy: Footprints as Indicators of Constraints in Paleogeographic Interpretation. Palaios, Vol.20. Gaillard, C., et al. (2005). Isopod Trackways from the Crayssac Lagerstätte, Upper Jurassic, France. Palaeontology, Vol.48, Part 5. Gierlinski, G.D. (1999). Tracks of a large thyreophoran dinosaur from the Early Jurassic of Poland. Acta Palaeontologica Polonica, Vol.44, Number 2. Gierlinski, G.D. (1996). Avialan Theropod Tracks from the Early Jurassic Strata of Poland. Zubia, 14. Gierlinski, G.D., G. Niedzwiedzki and P. Nowacki (2009). Small theropod and ornithopod footprints in the Late Jurassic of Poland. Acta Geologica Polonica, Vol.59, Number 2. Lomax, D.R. and C.A. Racay (2012). A Long Mortichnial Trackway of Mesolimulus walchi from the Upper Jurassic Solnhofen Lithographic Limestone near Wintershof, Germany. Ichnos, 19. Manni, R., U. Nicosia and G. Nobili (1999). An Unusual Tetrapod Trackway from Lower Jurassic Marine Sediments of Central Italy: Accordiichnus natans N. Ichnogen, N. Ichnosp. Geologica Romana, 35. Mateus, O. and J. Milàn (2008). Ichnological evidence for giant ornithopod dinosaurs in the Upper Jurassic Lourinhã Formation, Portugal. Oryctos, Vol.8. Mateus, O., et al. (2011). New finds of stegosaur tracks from the Upper Jurassic Lourinha Formation, Portugal. Acta Palaeontologica Polonica, 56(3). Milan, J. (2011). New theropod, thyreophoran and small sauropod tracks from the Middle Jurassic Baga Formation, Bornholm, Denmark. Bulletin of the Geological Society of Denmark, Vol.59. Moreau, J.-D., et al. (2012). Biometric and morphometric approaches on Lower Hettangian dinosaur footprints from the Rodez Strait (Aveyron, France). C.R. Palevol, 11. Jurassic Tracks and Trackways - North America Dalman, S.G. and R.E. Weems (2013). A New Look at Morphological Variation in the Ichnogenus Anomoepus, With Special Reference to Material from the Lower Jurassic Newark Supergroup: Implications for Ichnotaxonomy and Ichnodiversity. Bulletin of the Peabody Museum of Natural History, 54(1). Getty, P.R. (2005). Excavated and In Situ Dinosaur Footprints from the Murray Quarry (Early Jurassic East Berlin Formation), Holyoke, Massachusetts, USA. Ichnos, 12. Getty, P.R. and N. Fox (2015). An Isolated Eubrontes giganteus Trackway from Gary Gaulin Dinosaur Track Site (Early Jurassic, East Berlin Formation), Holyoke, Massachusetts. Northeastern Geoscience, Vol.33. Harris, J.D. and K.J. Lacovara (2004). Enigmatic Fossil Footprints from the Sundance Formation (Upper Jurassic) of Bighorn Canyon National Recreation Area, Wyoming. Ichnos, 11. Lockley, M.G., R.T. McCrea and L.G. Buckley (2015). A review of dinosaur track occurrences from the Morrison Formation in the type area around Dinosaur Ridge. Palaeogeography, Palaeoclimatology, Palaeoecology, 433. Lockley, M.G., G.D. Gierlinski and S.G. Lucas (2011). Kayentapus Revisited: Notes on the Type Material and the Importance of This Theropod Footprint Ichnogenus. In: Fossil Record 3. Sullivan, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 53. Lockley, M.G., et al. (2017). New dinosaur track occurrences from the Upper Jurassic Salt Wash Member (Morrison Formation) of southeastern Utah: Implications for thyreophoran trackmaker distribution and diversity. Palaogeography, Palaeoclimatology, Palaeoecology, 470. Milan, J., D.B. Loope and R.G. Bromley (2008). Crouching theropod and Navahopus sauropodomorph tracks from the Early Jurassic Navajo Sandstone of USA. Acta Palaeontolotica Polonica, 53(2). Milner, A.R.C., M.G. Lockley, and J.I. Kirkland (2006). A Large Collection of Well-Preserved Theropod Dinosaur Swim Tracks from the Lower Jurassic Moenave Formation, St. George, Utah. In: The Triassic-Jurassic Terrestrial Transition. Harris, et al. (eds.), New Mexico Museum of Natural History and Science Bulletin 37. Olsen, P.E., J.B. Smith and N.G. McDonald (1998). Type Material of the Type Species of the Classic Theropod Footprint Genera Eubrontes, Anchisauripus and Grallator (Early Jurassic, Hartford and Deerfield Basins, Connecticut and Massachusetts, USA). Journal of Vertebrate Paleontology, 18(3). Rainforth, E.C. (2005). Ichnotaxonomy of the Fossil Footprints of the Connecticut Valley (Early Jurassic, Newark Supergroup, Connecticut and Massachusetts). Ph.D. Dissertation - Columbia University. Jurassic Tracks and Trackways - South America/Central America/Caribbean Apesteguia, S. and P.A. Gallina (2011). Tunasniyoj, a dinosaur tracksite from the Jurassic-Cretaceous boundary of Bolivia. Annals of the Brazilian Academy of Sciences, 83(1). De Valais, S., R.N. Melchor and J.F. Genise (2003). Hexapodichnus casamiqueli isp.nov.: an insect trackway from the La Matilde Formation (Middle Jurassic), Santa Cruz, Argentina. Asociación Paleontológica Argentina, Special Publication 9. Dentzien-Dias, P.C., et al. (2007). The Trace Fossil Record from the Guará Formation (Upper Jurassic?), Southern Brazil. Arquivos do Museo Nacional, Rio de Janeiro, Vol.65, Number 4. Ferrusquía-Villafranca, I., V.M. Bravos-Cuevas and E. Jiménez-Hidalgo (2007). The Xochixtlapilco Dinosaur Ichnofauna, Middle Jurassic, of Oaxaca, Southeastern Mexico: Description and Paleontologic Significance. Contributions in Science, Number 515. Moreno, K. and M.J. Benton (2005). Occurrence of sauropod dinosaur tracks in the Upper Jurassic of Chile (Redescription of Iguanodonichnus frenki). Journal of South American Earth Sciences, 20. Rodriguez-de la Rosa, R.A., et al. (2018). Middle Jurassic ankylosaur tracks from Mexico. Boletin de la Sociedad Geologica Mexicana, Vol.70, Number 2. General Jurassic Tracks and Trackways Lockley, M.G., C.A. Meyer and J.J. Moratalla (1998). Therangospodus: Trackway Evidence for the Widespread Distribution of a Late Jurassic Theropod with Well-Padded Feet. Gaia, Number 15. Milan, J., et al. (2006). Theropod Foot Movement Recorded By Late Triassic, Early Jurassic and Late Jurassic Fossil Footprints. In: The Triassic-Jurassic Terrestrial Transition. Harris, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 37. Milner, A.C., et al. (2009). Bird-Like Anatomy, Posture, and Behavior Revealed by an Early Jurassic Theropod Dinosaur Resting Trace. PLoS ONE, 4(3). (read on-line or download from site. Thanks to Nandomas for pointing this one out) Padian, K. and P.E. Olsen (1984). The Fossil Trackway Pteraichnus: Not Pterosaurian, But Crocodilian. Journal of Paleontology, Vol.58, Number 1. Weems, R.E. (2006). Locomotor Speeds and Patterns of Running Behavior in Non-Maniraptoriform Theropod Dinosaurs. In: The Triassic-Jurassic Terrestrial Transition. Harris, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 37. Cretaceous Cretaceous Tracks and Trackways - Africa/Middle East Belvedere, M., et al. (2013). Vertebrate footprints from the Kem Kem Beds: A novel ichnological approach to faunal reconstruction. Palaeogeography, Palaeoclimatology, Palaeoecology, 383-384. Boudchiche, L., et al. (2017). Jarrate Lbel: New Upper Cretaceous continental site in Morocco. A probable ornithischian non-ornithopod trackway and three amble gait titanosauriform trackways. Geogaceta, 61. Ibrahim, N., et al. (2014). Dinosaur Footprints and Ichnofauna from the Cretaceous Kem Kem Beds of Morocco. PLoS ONE, 9(3). Klein, H., et al. (2018). Crocodylomorph, turtle and mammal tracks in dinosaur-dominated Middle-?Upper Jurassic and mid-Cretaceous ichnoassemblages of Morocco. Palaeogeography, Palaeoclimatology, Palaeoecology, 498. Mateus, O., et al. (2017). Angolan ichnosite in a diamond mine shows the presence of a large terrestrial mammaliamorph, a crocodylomorph and sauropod dinosaurs in the Early Cretaceous of Africa. Palaeogeography, Palaeoclimatology, Palaeoecology, 471. Porchetti, S.D. and A. Wagensommer (2015). A vertebrate trackway from the Twyfelfontein Formation (Lower Cretaceous), Damaraland, Namibia. Palaontol Z, published on-line. Cretaceous Tracks and Trackways - Asia/Malaysia/Pacific Islands Currie, P.J., D. Badamgarav and E.B. Koppelhus (2003). The First Late Cretaceous Footprints from the Nemegt Locality in the Gobi of Mongolia. Ichnos, 10. Falk, A.R., J.-D. Lim and S.T. Hasiotis (2014). A behavioral analysis of fossil bird tracks from the Haman Formation (Republic of Korea) shows a nearly modern avian ecosystem. Vertebrata PalAsiatica, 52(1). Ishigaki, S. (2010). Theropod trampled bedding plane with laboring trackways from the Upper Cretaceous Abdrant Nuru fossil site, Mongolia. Hayashibara Museum of Natural Science Research Bulletin, Vol.3. Kim, J.Y., et al. (2006). The oldest record of webbed bird and pterosaur tracks from South Korea (Cretaceous Haman Formation, Changseon and Sinsu Islands): More evidence of high avian diversity in East Asia. Cretaceous Research, 27. Kim, K.S., et al. (2018). First reports of a distinctive theropod track assemblage from the Jinju Formation (Late Cretaceous) of Korea provides strong correlations with China. Cretaceous Research, 81. Kim, K.S., et al. (2017). Korean trackway of a hopping, mammaliform trackmaker is first from the Cretaceous of Asia. Cretaceous Research, 74. Kim, K.S., et al. (2017). First report of lacertiform (lizard) tracks from the Cretaceous of Asia. Cretaceous Research, 69. Lee, Y-N. and J-J. Lee (2006). A Sauropod Trackway in Donghae-Myeon, Goseong County, South Gyeongsang Province, Korea and its Paleobiological Implications of Uhangri Manus-Only Sauropod Tracks. J.Paleont.Soc. Korea, Vol.22, Number 1. Li, D., et al. (2006). A Preliminary Report on Two New Vertebrate Track Sites Including Dinosaurs from the Early Cretaceous Hekou Group, Gansu Province, China. J.Paleont.Soc. Korea, Vol.22, Number 1. Lim, J.-D., et al. (2000). The oldest known tracks of web-footed birds from the Lower Cretaceous of South Korea. Naturwissenschaften, 87. Matsukawa, M. and I. Obata (1985). Discovery of Dinosaur Footprints from the Lower Cretaceous Sebayashi Formation, Japan. Proc. Japan Acad., Series B, Vol.61, Number 3. Matsukawa, M., et al. (1995). Dinosaur Footprints from the Lower Cretaceous of Eastern Manchuria, Northeastern China: Implications for the Recognition of an Ornothopod Ichnofacies in East Asia. Palaios, Vol.10, Number 1. Tsukiji, Y., et al. (2018). New ornithopod footprints from the Lower Cretaceous Kitadani Formation, Fukui, Japan: Ichnotaxonomical implications. Cretaceous Research, 84. Xing, L-D., et al. (2018). Multiple parallel deinonychosaurian trackways from a diverse dinosaur track assemblage of the Lower Cretaceous Dasheng Group of Shandong Province, China. Cretaceous Research, 90. Xing, L-D., et al. (2017). Lower Cretaceous avian tracks from Jiangsu Province, China: A first Chinese report for ichnogenus Goseongornipes (Ignotornidae). Cretaceous Research, 84. Xing, L.-D., et al. (2017). Mid-Cretaceous dinosaur track assemblage from the Tongfosi Formation of China: Comparison with the track assemblage of South Korea. Cretaceous Research, 74. Xing, L.-D., et al. (2017). Sauropod Trackway Reflecting an Unusual Walking Pattern from the Early Cretaceous of Shandong Province, China. Ichnos, Vol.24, Number 1. Xing, L.-D., et al. (2017). Late Cretaceous ornithopod-dominated theropod, and pterosaur track assemblages from the Nanxiong Basin, China: New discoveries, ichnotaxonomy , and paleoecology. Palaeogeography, Palaeocimatology, Palaeoecology, 466. Xing, L.-D., et al. (2016). Complex In-Substrate Dinosaur (Sauropoda, Ornithopoda) Foot Pathways Revealed by Deep Natural Track Casts from the Lower Cretaceous Xiagou and Zhonggou Formations, Gansu Province, China. Ichnos, Vol.0, Number 0. Xing, L.-D., et al. (2016). Digit-only sauropod pes trackways from China - evidence of swimming or a preservational phenomenon? Scientific Reports, 6:21138. Xing, L.-D., et al. (2016). A new Minisauripus site from the Lower Cretaceous of China: Tracks of small adults or juveniles? Palaeogeography, Palaeoclimatology, Palaeoecology, 462. Xing, L.-D., et al. (2015). The longest theropod trackway from East Asia, and a diverse sauropod-, theropod- and ornithopod-track assemblage from the Lower Cretaceous Jiaguan Formation, southwest China. Cretaceous Research, 56. Xing, L.-D., et al. (2015). An unusual sauropod turning trackway from the Early Cretaceous of Shandong Province, China. Palaeogeography, Palaeoclimatology, Palaeoecology, 437. Xing, L.-D., et al. (2015). Reanalysis of Wupus agilis (Early Cretaceous) of Chongqing, China as a Large Avian Trace: Differentiating between Large Bird and Small Non-Avian Theropod Tracks. PLoS ONE, 10(5). Xing, L.-D., et al. (2013). A new Early Cretaceous dinosaur track assemblage and the first definite non-avian theropod swim trackway from China. Chinese Science Bulletin, Vol.58, Number 19. Xing, L.-D., et al. (2013). Diverse dinosaur ichnoassemblages from the Lower Cretaceous Dasheng Group in the Yishu fault zone, Shandong Province, China. Cretaceous Research, 45. Xing, L.-D., et al. (2013). Pterosaur trackways from the Lower Cretaceous Jiaguan Formation (Barremian-Albian) of Qijiang, Southwest China. Palaeogeography, Palaeoclimatology, Palaeoecology, 392. Xing, L.-D., et al. (2012). Early Cretaceous pterosaur tracks from a "buried" dinosaur tracksite in Shandong Province, China. Palaeoworld, 21. Xing, L.-D., et al. (2009) Ornithopod (Dinosauria: Ornithischia) tracks from the Upper Cretaceous Zhutian Formation in the Nanxiong Basin, Guangdong, China, and general observations on large Chinese ornithopod footprints. Geological Bulletin of China, Vol.28, Number 7. Xing, L.-D., et al. (2009). Theropod (Dinosauria: Saurischia) tracks from Lower Cretaceous Yixian Formation at Sihetun Village, Liaoning Province, China and possible track makers. Geological Bulletin of China, Vol.28, Number 5. Yu, X.-Q., Y. Kobayashi and J.-C. Lu (1999). The Preliminary Study of the Dinosaur Footprints from Huangshan, Anhui Province. Vertebrata PalAsiatica, 37(4). Zhang, J., et al. (2006). Diverse dinosaur-, pterosaur-, and bird-track assemblages from the Hakou Formation, Lower Cretaceous of Gansu Province, northwest China. Cretaceous Research, 27. Cretaceous Tracks and Trackways - Australia/New Zealand Romilio, A., R.T. Tucker and S.W. Salisbury (2013). Reevaluation of the Lark Quarry Dinosaur Tracksite (Late Albian-Cenomanian Winton Formation, Central-Western Queensland, Australia): No Longer a Stampede? Journal of Vertebrate Paleontology, 33(1). Cretaceous Tracks and Trackways - Europe (including Greenland and Siberia) Citton, P., et al. (2017). The first dinosaur tracksite from Abruzzi (Monte Cagno, Central Apennines, Italy). Cretaceous Research, 73. Citton, P., et al. (2015). Elongated theropod tracks from the Cretaceous Apenninic Carbonate Platform of southern Latium (central Italy). Palaeontologia Electronica, 18.3.49A. Dalla Vecchia, F.M. (1998). Theropod Footprints in the Cretaceous Adriatic-Dinaric Carbonate Platform (Italy and Croatia). Gaia, Number 15. Dalla Vecchia, F.M. and S. Venturini (1995). A Theropod (Reptilia, Dinosauria) Footprint on a Block of Cretaceous Limestone at the Pier of Porto Corsini (Ravenna, Italy). Revista Italiana di Paleontologia y Stratigrafia, Vol.101, Number 1. Dalla Vecchia, F.M., A. Tarlao and G. Tunis (1993). Theropod (Reptilia, Dinosauria) footprints in the Albian (Lower Cretaceous) of the Quieto/Mirna river mouth (NW Istria, Croatia) and dinosaur population of the Istraian region during the Cretaceous. Mem.Sci.geol., Vol.45. Dalla Vecchia, F.M., et al. (2002). Late Barremian and late Albian (early Cretaceous) dinosaur track sites in the main Brioni/Brijun island (SW Istria, Croatia). Natura Nascosta, Number 25. Dalla Vecchia, F.M., et al. (2001). Dinosaur track sites in the upper Cenomanian (Late Cretaceous) of Istrian Peninsula (Croatia). Bollettino della Societa Paleontologica Italiana, 40(1). Lallensack, J.N., A.H. van Heteren and O. Wings (2016). Geometric morphometric analysis of intratrackway variability: a case study on theropod and ornithopod dinosaur trackways from Munchehagen (Lower Cretaceous, Germany). PeerJ, 4:e2059. Mateus, O. and M.T. Antunes (2003). A new dinosaur tracksite in the Lower Cretaceous of Portugal. Ciencias da Terra (UNL), Number 15. Moratalla, J.J. and J. Hernán (2009). Turtle and Pterosaur Tracks from the Los Cayos Dinosaur Tracksite, Cameros Basin (Cornago, La Rioja, Spain): Tracking the Lower Cretaceous Bio-Diversity. Revista Española de Paleontología, 24(1). Moratalla, J.J. and J. Hernán (2005). Field Trip Guide to the La Rioja Fossil Tracksites. International Symposium on Dinosaurs and Other Vertebrate Paleoichnology. Moratalla, J.J., et al. (2017). A new trackway possibly made by a trotting theropod at the Las Hoyas fossil site (Early Cretaceous, Cuenca Province, Spain): Identification, bio-dynamics, and palaeoenvironmental implications. Palaeontologia Electronica, 20.3.59A. Nicosia, U., et al. (1999). The Late Cretaceous Dinosaur Tracksite Near Altamura (Bari, Southern Italy). Geologica Romana, 35. (Thanks to Nandomas for pointing this one out.) Petti, F.M., et al. (2010). A new purported ankylosaur trackway in the Lower Cretaceous (Lower Aptian) shallow-marine carbonate deposits of Puglia, southern Italy. Cretaceous Research, 31. Sánchez-Hernández, B., A.G. Przewieslik and M.J. Benton (2009). A Reassessment of the Pteraichnus Ichnospecies from the Early Cretaceous of Soria Province, Spain. Journal of Vertebrate Paleontology, 29(2). Vila, B., et al. (2013). The Latest Succession of Dinosaur Tracksites in Europe: Hadrosaur Ichnology, Track Production and Palaeoenvironments. PLoS ONE, 8(9). Cretaceous Tracks and Trackways - North America Albritton, C.C. (1942). Dinosaur Tracks Near Comanche, Texas. Field & Laboratory, SMU, 10(2). Anfinson, O.A., et al. (2009). First report of the small bird track Koreanaornis from the Cretaceous of North America: implications for avian ichnotaxonomy and paleoecology. Cretaceous Research, 30. Currie, P.J. (1983). Hadrosaur Trackways from the Lower Cretaceous of Canada. Acta Palaeontologica Polonica, Vol.28, Numbers 1-2. Farlow, J.O., et al. Dinosaur Tracksites of the Paluxy River Valley (Glen Rose Formation, Lower Cretaceous), Dinosaur Valley State Park, Somervell County, Texas. (Figures not included). Fiorillo, A.R. (2005). Turtle Tracks in the Judith River Formation (Upper Cretaceous) of South-Central Montana. Palaeontologia Electronica, Vol.8, Issue 1. Fiorillo, A.R., S.T. Hasiotis and Y. Kobayashi (2014). Herd structure in Late Cretaceous polar dinosaurs: A remarkable new dinosaur tracksite, Denali National Park, Alaska, USA. Geology, Item 2014267. Harris, J.D., et al. (1996). Four-toed theropod footprints and a paleomagnetic age from the Whetstone Falls Member of the Harebell Formation (Upper Cretaceous: Maastrichtian), northwestern Wyoming. Cretaceous Research, 17. Kappus, E. and W.C. Cornell (2003). A New Cretaceous Dinosaur Tracksite in Southern New Mexico. Palaeontologia Electronica, 6(3). Lee, Y-N. (1997). Bird and dinosaur footprints in the Woodbine Formation (Cenomanian), Texas. Cretaceous Research, 18. Lockley, M.G. and C. Jennings (1987). Dinosaur Tracksites of Western Colorado and Eastern Utah - Late Cretaceous Coal Mine Tracks. In: Paleontology and Geology of the Dinosaur Triangle. Averett, W.R. (ed.), The Museum of Western Colorado. Lockley, M.G., et al. (2014). A Preliminary Report on a New Dinosaur Tracksite in the Cedar Mountain Formation (Cretaceous) of Eastern Utah. In: Fossil footprints of western North America . Lockley, M.G. and S.G. Lucas (eds.), New Mexico Museum of Natural History and Science Bulletin 62. Lucas, S.G., et al. (2011). Hadrosaur Footprints from the Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico, And the Ichnotaxonomy of Large Ornithopod Footprints. In: Fossil Record 3. Sullivan, R.M., et al. (eds.). New Mexico Museum of Natural History and Science, Bulletin 53. McCrea, R.T. (2003). Fossil tracks from Tumbler Ridge: a brief history of collaboration between amateurs and academics. Alberta Palaeontological Society, Seventh Annual Symposium. McCrea, R.T. and L.G. Buckley (2008). Fossil vertebrate tracks from the Gorman Creek Formation, northeastern B.C. Alberta Palaeontological Society, Twelfth Annual Symposium. McCrea, R.T., et al. (2014). A 'Terror of Tyrannosaurs': The First Trackways of Tyrannosaurids and Evidence of Gregariousness and Pathology in Tyrannosauridae. PLoS ONE, 9(7). Milner, A.R.C., et al. (2006). Dinosaur Tracks from the Upper Cretaceous Iron Springs Formation, Iron County, Utah. In: Late Cretaceous Vertebrates from the Western Interior. Lucas, S.G. and R.M. Sullivan (eds.), New Mexico Museum of Natural History and Science, Bulletin 35. Parker, L.R. and R.L. Rowley (1989). Dinosaur Footprints from a Coal Mine in East-Central Utah. Reprinted from: Dinosaur Tracks and Traces, Gillette, D.D. and M.G. Lockley (eds.), Cambridge University Press. Phillips, P.L., et al. (2007). Sequence stratigraphic controls on synsedimentary cementation and preservation of dinosaur tracks: Example from the lower Cretaceous (Upper Albian) Dakota Formation, Southeastern Nebraska, U.S.A. Papers in Earth and Atmospheric Sciences, Paper 297. Platt, B.F., et al. (2018). LIDAR-based characterization and conservation of the first theropod dinosaur trackways from Arkansas, USA. PLoS ONE, 13(1). (Thanks to Troodon for finding this one!) Shuler, E.W. (1937). Dinosaur Tracks at the Fourth Crossing of the Paluxy River Near Glen Rose, Texas. Field & Laboratory, SMU, 5(2). Smith, S.D., W.S. Persons and L. Xing (2016). A tyrannosaur trackway at Glenrock, Lance Formation (Maastrichtian), Wyoming. Cretaceous Research, 61. Therrien, F., et al. (2015). Dinosaur trackways from the Upper Cretaceous Oldman and Dinosaur Park formations (Belly River Group) of southern Alberta, Canada, reveal novel ichnofossil preservation style. Can.J. Earth Sci., 52. Wright, J., and M. Lockley (2001). Dinosaur and turtle tracks from the Laramie/Arapahoe formations (Upper Cretaceous), near Denver, Colorado, USA. Cretaceous Research, 22. Cretaceous Tracks and Trackways - South America/Central America/Caribbean Buck, P.V., et al. (2017). A new ichnotaxon classification of large mammaliform trackways from the Lower Cretaceous Botucatu Formation, Parana Basin, Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology, xxx. (Article in press) Buck, P.V., et al. (2017). A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology. Palaeogeography, Palaeoclimatology, Palaeoecology, 466. Calvo, J.O. and M.G. Lockley (2001). The first pterosaur tracks from Gondwana. Cretaceous Research, 22. Console-Gonella, C., et al. (2017). The Maastrichtian-Danian Maimara tracksite (Yacoraite Formation, Salta Group), Quebrada de Humahuaca, Argentina: environments and ichnofacies implications. Palaeogeography, Palaeoclimatology, Palaeoecology, 468. de Souza Carvalho, I. (2004). Dinosaur Footprints from Northeastern Brazil: Taphonomy and Environmental Setting. Ichnos, 11. Leondardi, G. and C.F. Dos Santos (2004). New dinosaur tracksites from the Sousa Lower Cretaceous basin (Paraiba, Brazil). Studi Trent.Sci.Nat., Acta Geol., 81. Meyer, C.A., et al. (2005). Dinosaur tracks from the Late Cretaceous Sabinas Basin (Mexico). Kaupia, 14. Rodriguez-de la Rosa, R.A., et al. (2012). Lower Cretaceous Dinosaur Tracks from Puebla, Mexico. Journal of Geological Research, Vol.2012, Article ID 808729. Rubilar-Rogers, D., et al. (2008). Theropod Dinosaur Trackways from the Lower Cretaceous of the Chacarilla Formation, Chile. Revista Geológica de Chile, 35(1). General Cretaceous Tracks and Trackways Falk, A.R. (2009). Interpreting Behavior from Early Cretaceous Bird Tracks and the Morphology of Bird Feet and Trackways. Masters Thesis - The University of Kansas. Paleocene Luthje, C., J. Milan and J. Hurum (submitted). Paleocene tracks of the Pantodont genus Titanoides in coal-bearing strata, Svalbard, Arctic Norway. Proc.R.Soc.B. Eocene Foster, J.R. (2001). Salamander Tracks (Ambystoichnus?) from the Cathedral Bluffs Tongue of the Wasatch Formation (Eocene), Northeastern Green River Basin, Wyoming. J.Paleont., 75(4). Hamblin, A.H., W.A.S. Sarjeant and D.A.E. Spalding (1998). A Remarkable Mammal Trackway in the Uinta Formation (Late Eocene). Brigham Young University Geology Studies, Vol.43. Mustoe, G.E. (2002). Eocene Bird, Mammal and Reptile Tracks from the Chukanut Formation, Northwest Washington. Palaios, Vol.17. Mustoe, G.E., D.S. Tucker and K.L. Kemplin (2012). Giant Eocene Bird Footprints from Northwest Washington, USA. Palaeontology, Vol.55, Part 6. Uchman, A., A. Gazdzicki and B. Blazejowski (2018). Arthropod trace fossils from Eocene cold climate continental strata of King George Island, West Antarctica. Acta Palaeontologica Polonica, 63(X). Oligocene Abbassi, N., S.G. Lucas and G.R. Zaare (2015). First report of Oligocene vertebrate footprints from Iran. Palaeogeography, Palaeoclimatology, Palaeoecology, 440. Bjork, P.R. (1976). Mammalian Tracks from the Brule Formation of South Dakota. Proc.S.D.Acad.Sci., Vol.55. Krapovickas, V. and N.L. Nasif (2011). Large caviomorph rodent footprints of the Late Oligocene Vinchina Formation, Argentina. Palaeontologia Electronica, Vol.14, Issue 2. Loope, D.B. (1986). Recognizing and Utilizing Vertebrate Tracks in Cross Section: Cenozoic Hoofprints from Nebraska. Palaios, Vol.1. (Thanks to doushantuo for pointing this one out!) Rajkumar, H.S. and H. Klein (2014). First perissodactyl footprints from the Flysch deposits of the Barail Group (Lower Oligocene) of Manipur, India. J. Earth Syst.Sci., Vol.123, Number 2. Xing, L.-D., M.G. Lockley and A. Falk (2013). First Record of Cenozoic Bird Footprints from East Asia (Tibet, China). Ichnos, 20. Miocene Anton, M., G. López and R. Santamaria (2004). Carnivore Trackways from the Miocene Site of Salinas de Añana (Alava, Spain).Ichnos, 11. Ataabadi, M.M. and N. Abbassi (2007). Affinities and Implications of New Miocene Mammal Footprints from Iran. Vertebrata PalAsiatica, 45(2). Bibi, F., et al. (2012). Early evidence for a complex social structure in Proboscidea from a late Miocene trackway site in the United Arab Emirates. Biol.Lett., published on-line. Dalla Vecchia, F.M. and M. Rustioni (1996). Mammalian trackways in the Conglomerato di Osoppo (Undine, NE Italy) and their contribution to its age determination. Mem.Sci.Geol., Vol.48. ######, M.-X. (1999). Footprints of Artiodactyls in Tunggur, Nei Mongol. Vertebrata PalAsiatica, 37(4). Higgs, W., D. Gardner and M. Beech (2005). A Fossil Proboscidean Trackway at Mleisa, Western Region of Abu Dhabi, United Arab Emirates. In: Emirates Heritage - Volume One. Hellyer, P. and M. Ziolkowski (eds.), Zayed Center for Heritage and History, El Ain, United Arab Emirates. Higgs, W.,et al. (2003). A Late Miocene Proboscidean Trackway from Western Abu Dhabi. Tribulus, Vol.13(2). Iliopoulos, G., S. Roussiakis and C. Fassoulas (2012). First occurrence of carnivore footprint with hyaenid affinities from the Late Miocene of Crete (Greece). Palaeobio. Palaeoenv., published online. Melchor, R.N., et al. (2015). Late Miocene ground sloth footprints and their paleoenvironment: Megatherichnum oportoi revisited. Palaeogeography, Palaeoclimatology, Palaeoecology, 439. Palfy, J., et al. (2007). U-Pb and 40Ar/39Ar dating of the Miocene fossil track site at Ipolytarnoc (Hungary) and its implications. Earth and Planetary Science Letters, 258. Williamson, T.E. and S.G. Lewis (1996). Mammal footprints from the Miocene-Pliocene Ogallala Formation, eastern New Mexico. New Mexico Geology, Vol.18, Number 1. Pliocene Camens, A. and R. Wells (2009). Diprotodontid Footprints from the Pliocene of Central Australia. Journal of Vertebrate Paleontology, 29(3). Raichlin, D.A., et al. (2010). Laetoli Footprints Preserve Earliest Direct Evidence of Human-Like Bipedal Biomechanics. PLoS ONE, 5(3). Pleistocene Altamura, F., R.T. Melis and M. Mussi (2017). A Middle Pleistocene hippo tracksite at Gombore II-2 (Melka Kunture, Upper Awash, Ethiopia). Palaeogeography, Palaeoclimatology, Palaeoecology, 470. Ashton, N., et al. (2014). Hominin footprints from Early Pleistocene Deposits at Happisburgh, UK. PLoS ONE, 9(2). Benner, J.S., J.C. Ridge, and N.K. Taft (2008). Late Pleistocene freshwater fish (Cottidae) trackways from New England (USA) glacial lakes and a reinterpretation of the ichnogenus Broomichnium Kuhn. Palaeogeography, Palaeoclimatology, Palaeoecology, 260. Bustos, D., et al. (2018). Footprints preserve terminal Pleistocene hunt? Human-sloth interactions in North America. Science Advances, 4:eaar7621. Carey, S.P., et al. (2011). A diverse Pleistocene marsupial trackway assemblage from the Victorian Volcanic Plains, Australia. Quaternary Science Reviews, 30. Dingwall, H.L., et al. (2013). Hominin stature, body mass, and walking speed estimates based on 1.5 million-year-old fossil footprints at Ileret, Kenya. Journal of Human Evolution, 64. Fanelli, F., et al. (2007). Tracks and trackways of "Praemegaceros" cazoiti (Depéret, 1897) (Artiodactyla, Cervidae) in Pleistocene coastal deposits from Sardinia (Western Mediterranean, Italy). Bollettino della Società Paleontologica Italiana, 46(1). Helm, C.W., et al. (2018). Late Pleistocene vertebrate trace fossils in the Goukamma Nature Reserve, Cape south coast, South Africa. Palaeont.afr., 52. Helm, C.W., et al. (2017). Biofilm assists recognition of avian trackways in Late Pleistocene coastal aeolianites, South Africa. Palaeont.afr., 52. Lea, P.D. (1996). Vertebrate Tracks in Pleistocene Eolian Sand-Sheet Deposits of Alaska. Quaternary Research, 45, Artlcle Number 0023. Lucas, S.G., et al. (2007). Mammoth Footprints from the Upper Pleistocene of the Tularosa Basin, Dona Ana County, New Mexico. In: Cenozoic Vertebrate Tracks and Traces. Lucas, Spielmann and Lockley (eds.), New Mexico Museum of Natural History and Science Bulletin 42. Pillola, G.L. and D. Zoboli (2017). Dwarf mammoth footprints from the Pleistocene of Gonnesa (southwestern Sardinia, Italy). Bollettino della Societa Paleontologica Italiana, 56(1). Roberts, D.L., et al. (2008). Last Interglacial fossil elephant trackways dated by OSL/AAR in coastal aeolianites, Still Bay, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology, 257. Webb, S. (2007). Further research of the Willandra Lakes fossil footprint site, southeastern Australia. Journal of Human Evolution, 52. Webb, S., M.L. Cupper and R. Robins (2006). Pleistocene human footprints from the Willandra Lakes, southeastern Australia. Journal of Human Evolution, 50. Westaway, M.C., et al. (2013). The Willandra Fossil Trackway: Assessment of ground penetrating radar survey results and additional OSL dating at a unique Australian site. Australian Archaeology, Number 76. General Tracks and Trackways Brand, L. (1996). Variations in Salamander Trackways Resulting from Substrate Differences. J.Paleont., 70(6). Carrano, M.T. and J.A. Wilson (2001). Taxon distributions and the tetrapod track record. Paleobiolgy, 27(3). Citton, P., U. Nicosia and E. Sacchi (2015). Updating and reinterpreting the dinosaur track record of Italy. Palaeogeography, Palaeoclimatology, Palaeoecology, 439. Diaz-Martinez, I., et al. (2015). Ichnotaxonomic Review of Large Ornithopod Dinosaur Tracks: Temporal and Geographic Implications. PLoS ONE, 10(2). Engelmann, G.F. and D.J. Chure (2017). Morphology and sediment deformation of downslope Brasilichnium trackways on a dune slipface in the Nugget Sandstone of northeastern Utah, USA. Palaeontologia Electronica, 20.2.22A. Falkingham, P.L. and A.M. Horner (2016). Trackways Produced by Lungfish During Terrestrial Locomotion. Scientific Reports, 6:33734. (Thanks to doushantuo for finding this one!) Falkingham, P.L., et al. (2011). Simulating sauropod manus-only trackway formation using finite-element analysis. Biol.Lett., 7. Farlow, J.O. (1992). Sauropod Tracks and Trackmakers: Integrating the Ichnological and Skeletal Records. Zubía, 10. Gatesy, S.M., N.H. Shubin and F.A. Jenkins (2005). Anaglyph Stereo Imaging of Dinosaur Track Morphology and Microtopography. Palaeontoligia Electronica, Vol.8, Number 1. Lea, I. (1855). On the Fossil Foot-Marks in the Red Sandstone of Pottsville, Pennsylvania. Transactions of the American Philosophical Society, Vol.X. Lockley, M.G. and L. Xing (2015). Flattened fossil footprints: Implications for paleobiology. Palaeogeography, Palaeoclimatology, Palaeoecology, 426. Lockley, M.G. and J.D. Harris (2010). Chapter 1. On the Trail of Early Birds: A Review of the Fossil Footprint Record of Avian Morphological and Behavioral Evolution. In: Trends in Ornithology Research. Ulrich, U.K., et al. (eds.), Nova Science Publishers, Inc. Loope, D.B. (1986). Recognizing and Utilizing Vertebrate Tracks in Cross Section: Cenozoic Hoofprints from Nebraska. Palaios, Vol.1. McDonald, H.G., et al. (2007). An Indexed Bibliography of Cenozoic Vertebrate Tracks. In: Cenozoic Vertebrate Tracks and Traces. Lucas, Spielmann and Lockley (eds.), New Mexico Museum of Natural History and Science Bulletin 42. Moratalla, J. and J. Hernán (2005). Field Trip Guide to the La Rioja Fossil Tracksites. International Symposium on Dinosaurs and Other Vertebrates Paleoichnology, Fumanya-Esperánza (Spain, France). Padian, K. and P.E. Olsen (1984). Footprints of the Komodo Monitor and the Trackways of Fossil Reptiles. Copeia, 1984(3). Porchetti, S.D., R.J. Bertini and M.C. Langer (2017). Walking, running, hopping. Analysis of gait variability and locomotor skills in Brasilichnum elusivum, Leonardi, with inferences on trackmaker identification. Palaeogeography, Palaeoclimatology, Palaeoecology, 465. Santucci, V.L., et al. (2006). Additional Fossil Vertebrate Tracks in National Park Service Areas. In: Fossils from Federal Lands. Lucas, S.G., et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 34. Sanz, E., et al. (2016). Three-dimensional elasto-plastic soil modelling and analysis of sauropod tracks. Acta Palaeontologica Polinica, 61(2). Trewin, N.H. (1995). A Draft System for the Identification and Description of Arthropod Trackways. Palaeontology, Vol.37, Part 4. Xing, L.D., et al. (2011). The Folklore of Dinosaur Trackways in China: Impact on Paleontology. Ichnos, 18. Young, C.-C. (1960). Fossil Footprints in China. Vertebrata PalAsiatica, IV(2).
  20. Hi all, sorry if this topic has already been made, but I couldn't find any threads teaching how to properly paint out fossil trackways. Basically I have a piece of Green River matrix with some bird tracks on it. As the depressions are very faint, i intend to darken the tracks the same way people often do for Grallator trackways. Any recommendation on the paint or material or method used? Thanks.
  21. Pleistocene Tracks!

    I came across this today, not a bad way to start the morning! Predominantly camel, but there was also proboscidean bison, horse, and small artiodactyl tracks that were either deer or reindeer!