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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. If you want to see a lot more of the petrified wood pieces in m
  2. 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
  3. Whitneynatalie

    South Carolina beach fossil

    She’s about an inch long. Found on Folly beach in South Carolina. Any ideas? Thanks!
  4. 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 ar
  5. 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!
  6. 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!
  7. 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, Col
  8. 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?
  9. 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
  10. 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!
  11. 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 se
  12. 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
  13. 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.
  14. 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.
  15. 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.
  16. 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?
  17. 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.
  18. Praefectus

    Schellwienella sp.

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

    Diaphragmus cestriensis

    Fossil Brachiopod Diaphragmus cestriensis EDIT: Updated pictures and stratigraphic information.
  20. 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.
  21. Praefectus

    Tyrannosaur Tooth

    Premaxillary tooth EDIT: Changed from Tyrannosaurus rex to Tyrannosaurid indet.
  22. 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
  23. 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.
  24. 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.
  25. 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!
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