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  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. Petrified Wood, conifer, fungus Polyporites wardii, early Permian late
  2. 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.
  3. 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.
  4. 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?
  5. 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.
  6. Praefectus

    Schellwienella sp.

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

    Diaphragmus cestriensis

    Fossil Brachiopod Diaphragmus cestriensis EDIT: Updated pictures and stratigraphic information.
  8. 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.
  9. Praefectus

    Tyrannosaur Tooth

    Premaxillary tooth EDIT: Changed from Tyrannosaurus rex to Tyrannosaurid indet.
  10. 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
  11. locutus9

    Silurian Invertebrate Needs ID

    These are two fossils of the same species collected at the Long Pond Road Site along the Erie Canal in Greece, New York. They are from the middle Silurian Rochester shale. These were collected last winter, and I have since been unable to identify them. Both are no greater than 3cm in length. Some interesting fine detail is visible on the first specimen. The American dime is 1.8cm in diameter.
  12. locutus9

    Silurian Fossil Needs ID

    This is a fossil I collected at the Long Pond Road Site along the Erie Canal in Greece, New York. It is from the middle Silurian Rochester shale. Some interesting perpendicular lines can be seen along the edge of it. I have looked for other fossils similar to this one and have found nothing. The American dime is 1.8cm in diameter.
  13. peter_robertson

    Is This An Egg?

    Hello! I am not a serious fossil collector, but I am always on the lookout for fossils when I am around exposed rock. I was hoping the members of this site could tell me if they thought this rock was a fossilized egg. I was struck by its shape and its texture. I photographed it in the Grand Canyon on the trail between Phantom Ranch and Cottonwood Campground. It measures about 5 inches squared. Thank you for your thoughts!
  14. SarahD

    ID HELP PLEASE!

    This was found near the Farmdale Geologic Exposure, and I am having a heck of a time identifying it; I'm used to your typical bryozoa, crinoid, and brachiopod - not this! The inner, u-shaped part looks biological, and is packed with a more clay-sourced material around it, and perhaps inside? I've taken numerous pictures to try to give a full look at this weird find. The outermost rock layer can flake off of picked. I'm not even 100% convinced it's a fossil, but i'm having trouble coming up with what in the world it could be. Please help me out!
  15. You thought I was done? NOPE! Here are some localities in the US. Some of these are going to take some searching for. http://fossilspot.com/index.html
  16. devlincdev1997

    trying to identify another find

    The front, back, side and bottom of whatever this could be? I could not find anything to measure it with but for now hopefully the pictures alone help for the meantime. The shape of it reminds me of a bone for some reason so that's my guess as to what it could be; not quite sure of what this texture on it is though, i scraped a bit of it off fairly easily and it was dusty brown coming off of it, but not too hard when scraping the surface it barely had any resistance. I tried scraping the exposed part of my other find; the iron concretion to compare the 2 and the concretion was much more durabl
  17. otto_haas

    Dinosaur Teeth

    Hello. I am considering trading for a few late Cretaceous-era theropod teeth from the American West (I think Wyoming/Montana) and would like some help confirming what they are. They are in ok condition, but I don't have any dinosaur teeth in my collection so I am very excited to bring these in. I'm not sure what formation they are from. I was hoping to narrow these down to a species, or at least get a second opinion. First one is a tooth that I was told is a tyrannosaur ind. Thoughts? I have been reading a lot of what @Troodon has posted so I am tagging him since he seems to be the resident ex
  18. Recently I took a trip up to central New Jersey in the US with my sister for our 2nd trip fossil hunting; at a place called “big brook preserve”. As I was sifting through looking at some fossils that I could identify such as shark teeth and fossilized poop with my very basic studying from the Internet and stuff I’ve seen on tv. She calls me over at something she had found while sifting through the dirt in the brook. Thinking that I’d be able to identify it for her I was stumped. it looks like it has characteristics of a fossil from what I think but with my limited knowledge and understanding I
  19. Darbi

    Fish tooth?

    I found this matrix containing something that reminds me of the fossilized fish tooth pictures that I have seen around on here. When I noticed this, I chipped this matrix section off of a larger shell hash plate containing mostly Turritella sp. and bivalves. Its original location is in Ellsworth county, Kansas at Kanopolis reservoir. Age of this matrix is Albian and it is from Kiowa formation-Longford Member. Length of this 'tooth' is about .25 inches/6.5 mm. Can anyone identify what it is? It is currently soaking in a bowl of water, I hope to remove more of the matrix off to get a better
  20. Hello, I am searching for geologic time dates for some formations. Most are named in the 1800's, so the names may make no sense. Europe Maybe France? carboniferous limestone of borlton, County of La Couronne Ireland, Lower Carboniferous Limestone, Ireland Calc carbonif Armagh? Formation and locality: Mountain Limestone, Armagh England, Ticknall Formation, Mississippian, Ticknall, South Derbyshire, England carboniferous limestone around Bristol Carboniferous Limestone: Oreton, Shropshir
  21. Can anyone identify this what type of marine life this skull is part of? I found it today along the East Coast of United States - Atlantic Ocean Spoon in photo for scale. The strange up raised markings on top are perplexing. Type of Eel perhaps? It's wet from me rinsing it in sink. Thank you!
  22. Aclyx

    Potential theropod tooth

    So I was walking in the river near my house one day and found what me and my friend think is a jeuvinile theropod tooth. Me and my friend are good with identifying dinosaurs, we love dinosaurs, but I just want to be sure. It's about 5 1/2 centimeters long, maybe 1/2 centimeter tall, and at the base about 1 centimeters thick. I found it in the Arkansas river right below keystone dam in Oklahoma, United States. It got dropped and broke into three pieces and that is why there are cracks in it.
  23. Seanrad09

    estate Sale - Hell Creek Theropod

    First post, but frequent follower of the page. I just came across a toe bone from an estate sale. It looks Hell Creek by the bone material and by what else was in the collection. It is definitely theropod. Would any of you be able to ID this? Any insight would be helpful. Thanks! Sean
  24. IamCornholio

    Found this weekend

    Found this weekend in my Dad's back yard in Tucumcari, New Mexico. This is the only piece i could find. Yet to find any info on this thing and never seen anything quite like it before.
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