Jump to content

Search the Community

Showing results for tags 'united states'.

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. otodus, megalodon, shark tooth, miocene, bone valley formation, usa, florida.
  • Search By Author

Content Type


Forums

  • Community News
    • Member Introductions
    • Member of the Month
    • Members' News & Diversions
  • Fossil Discussion
    • General Fossil Discussion
    • Questions & Answers
    • Fossil Hunting Trips
    • Fossil ID
    • Partners in Paleontology - Member Contributions to Science
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Is It Real? How to Recognize Fossil Fabrications
    • Member-to-Member Fossil Trades
    • Fossil News
  • General Category
    • Rocks & Minerals
    • Geology

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
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

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
  • Terry Dactyll's Blog
  • Sir Knightia's Blog
  • MaHa's Blog
  • shakinchevy2008'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
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Lindsey's Blog
  • Back of Beyond
  • Ameenah's Blog
  • St. Johns River Shark Teeth/Florida
  • 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
  • Olenellus' Blog
  • nicciann's Blog
  • nicciann's Blog
  • 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
  • barnes' Blog
  • xenacanthus' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • maybe a nest fossil?
  • farfarawy's Blog
  • Microfossil Mania!
  • blogs_blog_99
  • Southern Comfort
  • Emily's MotE Adventure
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • andreas' Blog test
  • fossilman7's Blog
  • 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?
  • 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
  • Hihimanu Hale
  • 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
  • Stocksdale's Blog
  • PaleoWilliam's Blog
  • TyrannosaurusRex's Facts
  • The Community Post
  • The Paleo-Tourist
  • 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
  • A Novice Geologist
  • 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
  • Books I have enjoyed
  • Ladonia Texas Fossil Park
  • Trip Reports
  • Glendive Montana dinosaur bone Hell’s Creek
  • Test
  • Stratigraphic Succession of Chesapecten

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

  1. MarcoSr

    Petrified Wood Slabs

    I'm interested in petrified wood for the scientific value (wood where the cell structure is well preserved), for the aesthetic value (mineralized with vivid colors and crystal shapes), and for oddities (like fungus, insect borings etc.) contained in the wood. Below are three petrified wood slabs, from the United States, from my collection. The below individual slab pictures were taken with the slabs dry, indoors using my camera with flash. The close-up pictures were taken with my Dino-Lite digital microscope. If you want to see a lot more of the petrified wood pieces in my collection, check out my TFF thread at the below link: Petrified Wood, conifer, fungus Polyporites wardii, early Permian late Triassic 295 to 201 MYA, Chinle Formation, northern Arizona - 3.60 lbs. 10.5x8.75x0.53 inches Traditionally this petrified wood has been identified as Araucarioxylon arizonicum, a conifer tree. However,according to Wikipedia “ The validity of the name Araucarioxylon arizonicum has been questioned. A. arizonicum may actually be composed of several different genera and species. A 2007 study on the syntypes used by Knowlton in describing the species has revealed that they belonged to three species. They were tentatively reclassified as Pullisilvaxylon arizonicum, Pullisilvaxylon daughertii, and Chinleoxylon knowltonii. The genus Araucarioxylon may thus be superfluous and illegitimate; and the petrified logs of Petrified Forest National Park may be composed of a greater diversity than initially believed.” What makes this slab unique are the oval shaped patterns framing and permeating the piece, which are actually the fossil remains of a fungus (named Polyporites wardii), that invaded the ancient tree before it was fossilized. The fungus is preserved in barite (fungus is almost never seen because it doesn't preserve in silica the way wood does). Petrified Wood, Triassic 225 MYA, Chinle Formation near Holbrook, Arizona - 745g 160 x200x12mm This slab has incredible colors (purple, red, orange, yellow etc.) which is a major reason why Arizona petrified wood is highly desired by petrified wood collectors. Petrified Wood, early Eocene 50 MYA, Green River Formation, Blue Forest along ancient Lake Gosiute, Sweetwater County, Wyoming - 1.2 lbs. 8.5x6x.38 inches This slab has really nice wood preservation with a very well defined heart in the center and stunning wood grain. There is blue agate, with golden calcite filling some of the agate voids, some nice insect borings, as well as fossil ostracods near the rind. Per Viney 2020 The Blue Forest of Ancient Lake Gosiute Sweetwater County Wyoming “The lacustrine setting in which the silicified wood formed is contrasted with two geologic environments commonly associated with silicified wood deposits, trees transported by streams and rivers buried in fine-grained fluvial sediments of deltas and floodplains as well as lahars and ash produced from volcanic eruptions that bury trees. A recent scientific study of the Blue Forest fossil wood reveals that preservation occurred as a multistage mineralization process. The taphonomic sequence that included stromatolitic growth followed by wood desiccation and then exposure to mineral-laden waters is consistent with a playa-lake model for Lake Gosiute.” Marco Sr.
  2. Hi all, I just got back from my first Big Brook journey and found many amazing things. I've figured out the majority of my finds but i am left with a few below that i could use some help on. I've attached pictures with measurements. Please let me know your thoughts! Once I've IDd these, i will make a post of my findings in the sites forum. If some of these chunks are too small to identify, i completely understand. Location: Big Brook Preserve, New Jersey. Found in creek from various methods of sifting and surface scanning. Period: Cretaceous, 70-72 million years old 1. I believe this is my first shark vert but would like confirmation. 2. These types of rocks were plaguing my new paleontologist brain all day. Can someone confirm what type of rock this is? This is NOT a fossil correct? My gut and from what I've seen is telling me ironstone concretions (The bane of New Jersey)? Two examples here: 3. Absolutely no clue, don't believe it is a rock though. 4. Bone? Is this enough to ID? 4. I thought these were plastic chunks at first. The brown one is definitely not though. The black cone has two perfectly symmetrical lines going up either side, seems odd. Doesn't sound like plastic when tapped though. Thank you in advance and please forgive my ignorance, very much a rookie at identifying anything other then teeth!
  3. OSLO

    Tubeworm fossil?

    Hi all, I found this in far northern Minnesota near a river. The circle is on both sides of the 2" thick rock, so I am assuming that a cylinder extends through it. After looking at images online, I am thinking that it might be a fossilized tubeworm, but none of the photos that I've seen quite match. Northern Minnesota has obviously had a lot of glacial activity in the past (possibly Blackduck Formation in the location found), and this area has Neoarchean bedrock. Thank you for any information that you can provide!
  4. SharkySarah

    Hell Creek vertebrae

    Below are some micro vertebrae from the Hell Creek formation. Any idea what they came from? 1. 2.
  5. Hello all, As a belemnite collector, I am looking for the American Jurassic species Pachyteuthis densus (Meek & Hayden, 1858). Does someone have this species and is willing to trade some examples of this particular species? Kind regards, Ruben The Netherlands
  6. Whitneynatalie

    South Carolina beach fossil

    She’s about an inch long. Found on Folly beach in South Carolina. Any ideas? Thanks!
  7. I know next to nothing about radioactivity-- enough to know licking fossils is inadvisable, although I'll admit that wasn't terribly disappointing news. What I'm wondering is whether specimens not radioactive enough to endanger a person are capable of damaging other specimens. Is there a need to segregate displays here, or am I just confused about the mechanics of this? My specific reason for asking is that at the moment I'm planning for my current favorite mineral specimen (which I am babying forever), an almandine garnet from Broken Hill, New South Wales, Australia, to share a small shelf area with a tooth from the phosphate deposits in Oulad Abdoun Basin, Morocco and a few dinosaur bone pieces from the Hell Creek Formation of Montana (one from Dawson County) and Lance Creek Formation of Niobrara County, Wyoming. The shelf is not enclosed, by the way. Thanks for your help!
  8. Does anyone know of the best public areas to collect ammonites in the U.S.? Ie., places like Lake Texoma where they allow you to collect ammonites on public land. I don’t really want to vacation in Texas this year and am looking for alternative places to collect at. Essentially looking for public locations anywhere except Texas. Thank you all in advance!
  9. BipolarBuffalo

    Please help id this little feller

    I found this about a year ago in a farmers field in central/mid Michigan, US. It is rather light. Not much weight to it. Thanks for any help!
  10. I did lots of online searching on which states trilobites have and haven't been found in, and compiled this. Its not as straight forward as you might think. Green means trilobites have been found in that state on the surface and are native to that area. Yellow means technically a trilobite has been found there but was found below the surface or the rocks are not native to the state. Red means no trilobite has ever been found in the state except for when humans have transported them there. Green: Alaska, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming Yellow: Florida, Louisiana, North Dakota Red: Connecticut, Delaware, Hawaii. No trilobites have been found in these states. The only trilobites in Florida and North Dakota came from cores that came from very far below the surface. Louisiana has trilobites from gravel that were transported via rivers from the Tennessee region. I have found very little references on trilobites coming from Oregon and Mississippi but have heard they exist. As far as Washington DC goes, I haven't seen anything that has said a trilobite has been found there but there are Paleozoic rocks at the surface according to macrostrat and trilobites have been found not too far away so I left it grey. Does anyone see anything incorrect with the above information? Before I undertook this task I knew trilobites were widespread but not this widespread. Trilobites are everywhere. I thought I'd share with the group.
  11. Evan Green

    Fossilized Bone ID Help

    Could I get some help identifying this fossil specimen? I'm unsure of if it's a rock or bone but considering the contrast of texture and look with any rocks I've found before, I'm leaning towards bone. It was found near a river in middle-Arkansas & is pretty small and hard to discern. Any ideas?
  12. I found a small complete Eldredgeops rana trilobite at Penn Dixie's "Dig With the Experts" last weekend. It's the first trilobite I've found, and I don't want to ruin it by trying to prep it myself. Does anyone know someone in the US who does that sort of thing? Or know how I could find someone? And is $30/hr. a realistic amount to expect to pay? Thanks for any help! --Kathy
  13. This is probably a dumb question, but it’s something I’ve been hesitant about. I was wondering if someone could give me tips about whom to ask (I assume businesses more often than individuals), how to ask in a way that is fair to both parties, and just any common courtesies that I should provide so that I’m less likely to be perceived as insincere. Thank you!
  14. I’m wondering if these two teeth (both are from the Morrison Formation in Moffat County, Colorado) have been identified correctly as Allosaurus and Marshosaurus. Here are the measurements of both: Allosaurus: 4cm long serration count is 10/5mm on anterior and posterior carinae base length is 21mm and base width is 13.5 mm (note from dealer: Please note that the base of this tooth is broken and the transition of enamel to root is not present. The base measurement may have been larger.) Marshosaurus: 4cm long serration count is 18/5mm on anterior and posterior carinae base length is 15 mm and base width is 8mm (note from dealer: Please note that the base of this tooth is very near the enamel to root transition a represents a fairly complete tooth.) The serrations on the anterior keel of the tooth extend two-thirds of the distance from tip to base. Images seem to be weirdly mismatched, but I think it’s pretty easy to tell which pictures match with which.
  15. TxHillRock6423

    Texas Hill Country ID Help

    Hello all, looking for a little help with the identification on a few items my kids and I have picked up at our ranch in the Texas Hill Country, located in Kimble County. We have just started down our adventure fossil hunting and to this forum. Please be patient with me. Thank you all for the help and I’m looking forward to learning and growing with this community. Jason
  16. I know that Acro stuff is quite rare and hard to come by, but I was wondering what the best spots in Texas are to find such fossil material. I live in the state, so it would not be too much of an issue to travel to a spot or two to hunt for these theropod fossils. To sum it up, my question is: what are the best spots in Texas to legally hunt for and collect Acrocanthosaurus fossils/teeth (preferably without heavy duty tools or machinery)? If there are any, it would be much appreciated if you list the formation and location.
  17. Seanrad09

    Lance Form. find, ceratopsian?

    Found this three years back in the Lance Formation. About 50 miles out of Newcastle, WY on a dig trip. Going through some bones I haven’t tried to ID. Any suggestions on this one? It has nice bone surface in a few spots, but isn’t familiar to me.
  18. Hi, everyone. I’m brand new here, so, pleased to meet all of you! I’m wondering if any of you know of locations in the US where you can dig for dinosaur fossils (body and/or trace) on a one-day-at-a-time basis and keep some of the material found. Thanks in advance.
  19. cngodles

    Mississippian Track in Sandstone?

    This one comes from a friend. He found this on a piece of sandstone that had fallen from an outcrop. With his GPS coordinates, it’s close to the border of the Greenbriar and the Mauch Chunk Formation. It looks like a modern mammal track to me, with 4 toe pads and a central pad. But I’ve identified 0 fossil animal tracks so far, so it might just be a strange arrangement of shapes. Mammals doesn’t fit, as it’s 100 million years too early. Synapsids are officially 10 million years out. So I’m at a loss. Anyone good with tracks?
  20. cngodles

    Pennsylvanian Ammonoid

    I found this a while back, but finally saw it as an Ammonoid. But which one I wonder. It is pretty thin. Unseen is the inner umbilical groove, but it’s likely not important for ID. Opposite side is unremarkable.
  21. Praefectus

    Schellwienella sp.

    Fossil brachiopod Schellwienella sp. EDIT: Updated pictures and stratigraphic information.
  22. Praefectus

    Diaphragmus cestriensis

    Fossil Brachiopod Diaphragmus cestriensis EDIT: Updated pictures and stratigraphic information.
  23. Kikokuryu

    Ceratodus sp.

    Stabilized with Butvar B-76. Found in a basal channel facies associated with an incised valley-fill sequence of fluvial sediments; found in situ from a channel-sand-bed-load layer near the base of the valley-fill sequence. Edit: So, I copy pasted that from my power point I use to catalogue my fossils. Not sure how to remove the boxes.
  24. Praefectus

    Tyrannosaur Tooth

    Premaxillary tooth EDIT: Changed from Tyrannosaurus rex to Tyrannosaurid indet.
  25. Praefectus

    Indeterminate Tyrannosaur

    Dimensions: CH = 41 mm CWB = 10 mm CBL = 16 mm MC = 18 denticles/5 mm DC = 14 denticles/5 mm DSDI = 1.29
×
×
  • Create New...