Search the Community: Showing results for tags 'dinosaurs'.



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


Forums

  • 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

Blogs

  • 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
  • ROOKMANDON'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
  • 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
  • Stocksdale's Blog
  • fossilman7's Blog
  • Hey Everyone :P
  • fossil maniac's Blog
  • Piranha 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
  • 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
  • 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

Calendars

  • Calendar

Categories

  • 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
    • Bony Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils (Things that look like fossils, but aren't.)

Found 68 results

  1. Found this in my rock garden. . Please help identify
  2. Does anyone know of any good places in New Jersey where you can legally look for, dig, and take dinosaur fossils/footprints?
  3. Hey everyone! Last August I took a trip to Chicago and, of course, went to The Field Museum. It's quite impressive and absolutely worth visiting. All exhibitions I was able to see were awesome. My favorite part was the dinosaur room, though the most famous skeleton is in the main hall. Let's start with some pictures of Sue - the most complete T-Rexskeleton ever found. The skull mounted to the bod, isn't the actual skull found with the skeleton. The original skull is exhibited on the first floor and wasn't add to the body, because it was kinda squeezed (you can read all about it at the museum). There's also another bone section of Sue displayed on first floor, right next to the fossil lab, where you see paleontologists working (it's like staring at animals at the zoo, but very interesting haha). Scientists still try to figure out, how these bones match to Sue's skeleton. Close to the displayed shown above, is the entrence to the dinosaur room. While making your way to the hall, you're passing several exhibits, arranged in a timeline. To me themost interesting exhibt was the Dimetrodon skeleton. My first ever dinosaur book, contained a picture of it, so it wasawesome to see it in person after so many years. Once you entered the room, you see impressive exhibts of several herbivores. To your left you find a Stegosaurus: In the middle of the room is a huge Apatosaurus: On the opposite you have Triceratops: Sorry, forgot the name of this boy, eating a Edmontosaurus: Next to the shown exhibit, you can see a Parasaurolophus: AND there's also a juvenile Edmontosaurus:
  4. Volcanic eruptions triggered dawn of the dinosaurs (Huge pulses of volcanic activity are likely to have played a key role in triggering the end Triassic mass extinction, which set the scene for the rise and age of the dinosaurs, new Oxford University research has found.) http://www.heritagedaily.com/2017/06/volcanic-eruptions-triggered-dawn-dinosaurs/115652 https://www.sciencedaily.com/releases/2017/06/170619151530.htm Dinosaurs got an evolutionary assist from huge volcanic eruptions by Mary Beth Griggs Popular Science http://www.popsci.com/volcanic-eruptions-dinosaur-evolution The paper is: Lawrence M. E. Percival, Micha Ruhl, Stephen P. Hesselbo, Hugh C. Jenkyns, Tamsin A. Mather, and essica H. Whiteside. Mercury evidence for pulsed volcanism during the end-Triassic mass extinction. PNAS, June 2017 DOI: 10.1073/pnas.1705378114 http://www.pnas.org/content/early/2017/06/13/1705378114 Yours, Paul H.
  5. Like did Ammonite shoot ink back then? please tell me.
  6. Opinion: NJ’s ‘marl’ pits yield dinosaur wonders Michele S. Byers, Daily Record, April 29, 2017 http://www.dailyrecord.com/story/opinion/letters/2017/04/29/new-jersey-fossils-dinosaurs-marl/101025078/ Yours, Paul H.
  7. My father and I are planning on taking a trip fossil hunting this summer, we can't seem to find anywhere that really seems worth driving to. (Everything around us is basically Devonian.) We were looking for something different: Mosasaur, Arthropods (Cambrian preferred), Holocene, etc. My dad loves actual bones and I love arthropods from Cambrian. We came to a consensus and are looking for anything marine in the Mid-West. But we will take any suggestions into consideration! (We are new-ish to fossil hunting and are willing to go anywhere and do anything.
  8. Its Spring. A glorious day. prairie Crocus are in bloom, the Meadowlarks are singing and the sky full of migrating waterfowl. First outing this year into the badlands. Headed out just north of Jenner, Alberta and then a trek east along the Red Deer River. Age is Campanian ( Late Cretaceous) about 72 million mya. All terrestrial deposits. A 6 km cycle ride in and then hike another couple. About 3 hours looking for fossils. Its feast or famine. Some hoodoos sterile and then an area dripping with vertebrate fossils. This area also yields a few 'unknowns' All fossils catch and release.
  9. Placement of terrestrial formations in the late cretaceous of North America as been constantly evolving and in October 2016 Denver Fowler a Paleontologist at the Museum of the Rockies published a very extensive paper on the subject and updated most units. This is very important when it comes to understanding dinosaur evolution and aids in describing species. This paper is in the process of going through peer review so is subject to change. Fowler DW. (2016) A new correlation of the Cretaceous formations of the Western Interior of the United States, I: Santonian-Maastrichtian formations and dinosaur biostratigraphy. PeerJ Preprints 4:e2554v1https://doi.org/10.7287/peerj.preprints.2554v1 The paper is pretty technical but all of the data is found in this excel file (supplemental information) which is a massive high-resolution stratigraphic chart for all of the formations from the late cretaceous of North America. It's nice to see it all laid out and a great reference source. https://doi.org/10.7287/peerj.preprints.2554v1/supp-1 To make it easy I've broken the chart apart so you can easily see most important dinosaur formations Texas The biggest change came with our understanding the Aguja and Javelina Formations of Texas part of the Tornillo group. The study indicated that the Aguja Formation deposits are only Campanian in age and that the Javelina Formation does not extend into the end of the Cretaceous. Very important when trying to describe species in those formations. Sellers have been comparing the Aguja to the Judith River in Montana well there is a correlation but its deposits are much younger that JR. Eastern Montana, N. Dakota, S. Dakota and Wyoming What I found interesting is that the Hell Creek is much older in Montana than in the adjacent states. The other interesting observation that can been easily be seen on these charts is that the how short a time frame the deposits of the Hell Creek/Lance formation are compared to the other major dinosaur formations. Central Montana Two Medicine and Judith River Formations are the two key formations in this locality Utah and New Mexico Utah depicted on the left and NM on the right Head North to Canada Alberta and Saskatchewan
  10. The family tree was announced back in February but the paper was just published. https://www.theguardian.com/science/2017/apr/19/how-we-revealed-a-new-family-tree-for-dinosaurs?CMP=share_btn_tw Abstract: For 130 years, dinosaurs have been divided into two distinct clades—Ornithischia and Saurischia. Here we present a hypothesis for the phylogenetic relationships of the major dinosaurian groups that challenges the current consensus concerning early dinosaur evolution and highlights problematic aspects of current cladistic definitions. Our study has found a sister-group relationship between Ornithischia and Theropoda (united in the new clade Ornithoscelida), with Sauropodomorpha and Herrerasauridae (as the redefined Saurischia) forming its monophyletic outgroup. This new tree topology requires redefinition and rediagnosis of Dinosauria and the subsidiary dinosaurian clades. In addition, it forces re-evaluations of early dinosaur cladogenesis and character evolution, suggests that hypercarnivory was acquired independently in herrerasaurids and theropods, and offers an explanation for many of the anatomical features previously regarded as notable convergences between theropods and early ornithischians Paper it's paywalls publication http://www.nature.com/nature/journal/v543/n7646/abs/nature21700.html
  11. From the album Cretaceous

    Hadrosaurus foulkii (partial dinosaur tooth) Upper Cretaceous Wenonah Formation Big Brook Colts Neck, N.J.
  12. Hello! Everyone has probably heard someone say here and there that they have found a dinosaur egg!! Although most eggs are very rare to find and you are very lucky if you do have the pleasure of finding one. I found this along with lots of other fossils in the same area. Just curious to know if you all think it is real or just a rock that is a look alike. This was found in Missouri in a small town of Fairdealing.
  13. This new analysis of dinosaurs and their near relatives, published today in the journal Nature, concludes that the ornithischians need to be grouped with the theropods, to the exclusion of the sauropodomorphs. It has long been known that birds (with their obviously ‘bird-like’ hips) evolved from theropod dinosaurs (with their lizard-like hips). However, the re-grouping of dinosaurs proposed in this study shows that both ornithischians AND theropods had the potential to evolve a bird-like hip arrangement- they just did so at different times in their history. http://www.nature.com/nature/journal/v543/n7646/full/nature21700.html http://www.nature.com/news/dinosaur-family-tree-poised-for-colossal-shake-up-1.21681 http://www.cam.ac.uk/research/news/new-study-shakes-the-roots-of-the-dinosaur-family-tree http://www.sciencemag.org/news/2017/03/t-rex-gets-new-home-shakeup-dino-family-tree
  14. A paleontologist at the Canadian Museum of Nature is countering decades of studies that assert that some dinosaurs can be identified as male or female based on the shapes and sizes of their bones. A study was conducted on non-avian dinosaurs like Tyrannosaurus rex, Allosaurus fragilis, Stegoceras and Stegosaurus to determine if sexual dimorphism existed. The study included tests and concluded that no evidence for sexual dimorphism was found in any of the examined taxa, contrary to conventional wisdom. This is not to say that dinosaurs were not sexually dimorphic, only that the available evidence precludes its detection. So what are we to about the gender names given to T rex's and most other mounted dinosaurs Is Sue a He? Do we need gender neutral names http://nature.ca/en/about-us/museum-news/news/press-releases/male-female-canadian-museum-nature-scientist-challenges-evi Pretty technical paper recognizing_sexual_dimorphism_in_the_fossil_record_lessons_from_nonavian_dinosaurs.pdf
  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. Interesting new theroy. Major shake-up suggests dinosaurs may have 'UK origin' http://www.bbc.co.uk/news/science-environment-39305750
  17. Hey everyone! I want to know your favorite extinct animal and why. Theropods, ornithischians, artiodactyls, cetaceans, carnivores, plesiosaurs, pterosaurs, gastropods!!! Megatherium, Tyrannosaurus Rex, Anzu Wyliei, Leedsichthys, Stegosaurus, Megalodon, Glyptodon, Moonshot, Woodstock, Watergate, Punk Rock! (just kidding) ANYWAYS, there are no limits here. Even if its coral. Get specific! Do you have a fossil from your favorite creature? If not, is it even possible to acquire one? Have any interesting discoveries been made about your creature as of late? Just looking to learn and start some interesting discussions. GO! ------ Cheers! Lauren
  18. http://news.nationalgeographic.com/2017/02/anchiornis-bird-like-dinosaur-feathers-lasers-soft-tissue-science.html
  19. Hi everyone! So I've recently gotten into the Early Cretaceous coastal environment of what was the extended Gulf of Mexico in what's now Texas after finding out about the numerous dinosaur trackways in my area of the state. I've been combing various databases, and I've already visited the trackway up at the South San Gabriel River twice (A very beautiful group of tracks I might add). This morning, I came across something that surprised me. On the database site https://paleobiodb.org/#/ ( a very useful and interesting site that shows various fossil finds on a map), I found that there were supposedly tracks from some sort of theropod (probably the large sort found around a lot of Texas that have been attributed to Acrocanthosaurus atokensis if I was to put my money on one) were found as close to home as Jonestown. Would anyone happen to know any more about this set of tracks? Unfortunately, there is nothing about exact location on the site like GPs coordinates, so all I have to go off of is the specimen number it provides and a name "TMM 43007, Sandy Creek". Thanks for any help anyone can provide!
  20. This contains,I believe,useful information. Regional interest:Iberia,Europe oolo
  21. Diatoms are monocellular organisms which contain chlorophyll, and manufacture their own food in the same manner as plants, through the process of photosynthesis. They are one of the major producers of the Earth's oxygen. Their long geological history makes them very useful in the correlation of sedimentary rocks, and they are of equal value in reconstructing paleoenvironments. They are remarkably common everywhere there is any water at all! I have studied fossil marine diatoms for many years, as they are my primary interest in the microfossil world. Many of them are quite beautiful, and they are a favorite subject with many persons who enjoy photomicrography. My primary interest is in diatom taxonomy and evolution, not photography, so I'm afraid my images don't really do them justice. Centric diatoms exhibit radial symmetry, from circular to triangular, and all points between. Oval shapes are not uncommon. The oldest specimens of essentially modern diatom types are from the Cretaceous, and one of the very best localities is the Moreno Shale, which crops out in the Panoche Hills of California. Many diatomists have worked on this flora, and it is fairly well understood. Here we see two of the common taxa from this source. (The bar across the top of the Azpeitiopsis is a sponge spicule, not part of the diatom!) Diatom frustules are composed of secreted silica -- hence they are brittle, but can be virtually indestructible by chemical or diagenetic change in the right sort of environment. (One exception is a highly alkaline environment, which corrodes and ultimately dissolves biogenetic silica.) Other siliceous microfossils include some types of sponge spicules, silicoflagellates (another blog entry coming up perhaps), radiolarians, and ebrideans. At least one family of the foraminifera uses siliceous cement to form their tests. Diatom floras changed radically across the KT boundary, but they are still abundant in the Paleocene. Arguably the world's most famous locality for fossil diatoms is the region around Oamaru, New Zealand, and all collectors have many specimens from there. The age is Late Eocene - Early Oligocene. Somewhat earlier are the many great localities in Russia. Here is a Paleocene specimen from Simbirsk, Ulyanovskaya, Russia. Note that it deviates from pure centric form in that it is slightly ovoid. My own specialty is the diatoms of the Miocene. The United States is blessed with superb Miocene localities on both coasts, many well-known to members of this forum, because most of them can also produce superb shark teeth. The earliest known Miocene flora in the US comes from sites in Maryland: near Dunkirk, Nottingham, and other lesser known localities along the Patuxent River. All of these sites began to be explored in the mid-19th Century, because the diatoms are so perfectly preserved, to say nothing of abundant! These sites are in the lowest part of the Calvert Formation; indeed, there is an unconformity above them that lasted for a considerable period of time, and the diatom flora exhibits considerable changes across it. This part of the Miocene section belongs to the Burdigalian Stage, and age-equivalent diatoms are found also in bore holes and artesian wells at Atlantic City, New Jersey. An index fossil for the East Coast Burdigalian is the following taxon: This species of Actinoptychus evolved relatively quickly, and became extinct at the end of the Burdigalian. It is remarkably beautiful under the microscope, especially in color images, as fine structures in the silica serve as diffraction gratings. I regret that I have no color image in my photo library: I need to make a few! The Calvert Cliffs are rich in fossil diatoms, also, from the later, Middle Miocene. The above is but one example of the many marvelous specimens that can be found in the Calvert. If you're walking the beach for shark teeth, and have access to a microscope such as that used in microbiology or pathology labs, or even the type used in high school biology labs, grab a sample of the sediment. Soak it in water until it disaggregates into mud, let it settle until the water is just a bit cloudy, and put a drop on a microscope slide with a coverslip. A magnification of 100X should reveal diatom frustules (or fragments thereof) among the remaining, unsettled particles of silt. Diatomists all have their own protocols to get such specimens almost perfectly clean, and permanent slides made with a mountant of high refractive index can be utterly gorgeous. I am currently working most intensely on samples from the somewhat later Choptank Formation, that outcrops at Richmond, Virginia. This is another locality that produces excellent specimens: This is one of the most enduring taxa in the geological record, appearing from the early Paleogene right up until the present day, and it can be very abundant. A common triangular form. There are many genera of triangular centric diatoms. And other radial shapes are possible, too: So far as I am aware, this unique specimen is the earliest known example of this taxon, which is still found today in tropical waters. The breakage in the top "arm" is unfortunate, but what can I say: the specimen is, thus far, unique. One might expect modern contamination of the sample, were it not for the fact that the Richmond localities occur far from the contemporary ocean coast -- they are not "watered" by modern waves! That's it -- the 3.95 MB limit..............................
  22. Mongolia seeks to crush fossil black market Ben Dooley, AFP, January 9, 2017: 2 https://www.yahoo.com/news/mongolia-seeks-crush-fossil-black-market-042416206.html http://phys.org/news/2017-01-mongolia-fossil-black.html Smugglers Ravage Gobi Desert Dinosaur Treasures Transitions Online, January 12, 2017 http://www.tol.org/client/article/26616-smugglers-ravage-gobi-desert-dinosaur-treasures.html Disappearing dinosaur fossils in the Gobi desert Matt Bracken, The Baltimore Sun http://darkroom.baltimoresun.com/2017/01/disappearing-dinosaur-fossils-gobi-desert/ U.S. Returns Stolen Dinosaur Eggs and Fossils to Mongolia. Newsweek, April 6, 2016. http://www.newsweek.com/dinosaur-eggs-fossils-smuggling-mongolia-444427 http://www.bbc.com/news/world-asia-35975018 Yours, Paul
  23. Hey ya all! I was wondering if anyone has gone on a tour with Paleo Prospectors and is willing to share their experience? http://www.paleoprospectors.com
  24. Please help identify this possible foot/toe fossil find. Found in near Edwards Plateau in Texas.