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  2. I’m not well versed in mammalian teeth, but I have an idea. Would it not be a tooth (or part of a tooth) that was barely out of the jaw bone, and therefore the root was not yet formed? This would explain that it is hollow, but also that the crown does not seem very worn. My 2 cents. We don't have its size... Coco
  3. Coco

    Help identify Conch Shell Fossil Age

    You are in the right place to identify your findings, but generally, to age a fossil we refer to the age of the sediment layer in which it was found. A beach in southern California is probably too vague... The coast of this state is rather long, right ? In addition, the size in cm or inches can help to refine an identification. That said, your shell is so worn out that I don’t know if we can determine a species, or even a genus. Keep looking, you may find better preserved ones. Coco
  4. ASEO.77

    What is this shell fossil?

    HI! New member here on the Fossil Forum from Sydney, Australia. My son wanted to find some marine fossils a couple weeks ago, so we went to Ulludulla's Permian aged (kungurian) Gondwana fossil coast. I need ID on the poorly preserved largest fossil in the middle (ignore spiriferid brachiopod on top right). Note this fossil is part of the Wandrawandian Formation (Shoalhaven group), south of the Sydney basin, Ulludulla. Thank you in advance for any help you guys can provide because I'm no expert.
  5. Hi, @Shellseeker I think your tooth is also Aetoatus arcuatus but really very worn, it lacks the sides. I do not know what is this protuberance on the top of the teeth (the ridged part is the root, the bottom) but it is not normal. It is a ray that eats crustaceans, shells etc while crushing them, it may have eaten one day something that hurt it and it has developed a deformation of the teeth. If this ray had aged more, I think it would have lost this anomaly, because the renewal of its teeth is done from the front, the block of teeth (it has the same thing at the top) advancing slowly. It’s like sharks losing their teeth from the first row that falls; for her, her pavement of teeth moves like a very slow treadmill. Here is an Aetobatis narinari jaw, a recent ray. I think A. arcuatus looked a lot like that, she had the same system of renewing its teeth. Coco
  6. Today
  7. JD1969

    Possible meteorite!?

    If it’s not magnetic that rules out magnetite. Try the magnetic test with the magnet hanging from a string to see if the piece is ferromagnetic.
  8. Randyw

    SE Texas - Femur from?

    I think I got it. Compare it to this black bear femur
  9. Randyw

    SE Texas - Femur from?

    I agree definetly not human
  10. Randyw

    Is this a fossil?

    Looks like a concretion to me… the rind looks too thick to be eggshell…. Plus it looks layered…
  11. May3am

    Possible meteorite!?

    Not so close to here, but it is possible brought this far somehow... I guess your right about it. Thank you.
  12. skimmers

    Is this a fossil?

    I found this rock while prospecting at a mine in red mtn.,ca. And am curious to know if it's a fossil or not. Any help would be appreciated :)
  13. johnnyvaldez7.jv

    SE Texas - Femur from?

    I don't think it's human. Spin this 3d image around and I don't see the deep groove mine has
  14. johnnyvaldez7.jv

    SE Texas - Femur from?

    https://sketchfab.com/3d-models/human-femur-a9c1f1a88b104c3fbfe975fa10b31b31
  15. Corey lakin

    Help identify Conch Shell Fossil Age

    Can someone tell me the age of this conch shell fossil? Found on beach in Southern California?
  16. Then I believe you have a land mammal tooth.. Anything is possible, but I have handled thousands and thousands of fossilized land mammal teeth in Florida and never found a single instance of water removing the pulp of an enamel tooth. All of mine have been hollow or not beyond Whale , alligator , and Crocodile. You might reach out to paleontologists at local universities and get their view of hollow land mammal teeth in your area. @digit @Harry Pristis I am just trying to give you options to chase. Hollow Mammal teeth are super rare. I think Digit or Harry will be happy to correct me if I am wrong
  17. SPrice

    Possible meteorite!?

    Looks like industrial furnace slag to me. Any kind of old factory nearby fit that?
  18. connorp

    Mazon Creek Tree Bark?

    Better pictures would help. The ones you posted are not in focus. It could be lycopsid bark. But if it truly is limestone, then no not bark. Bark like this shows up there in chunks of sandstone. Any limestone there is a glacial erratic.
  19. Thank you.. Once again GREAT Resource!!! Over the next weeks , I will go to the museum and down load all of the ear bones.. I will let you know how many when I finish,, Jack
  20. May3am

    Possible meteorite!?

    anyone have any idea about this one... not magnetic at all.
  21. Randyw

    SE Texas - Femur from?

    I could be wrong but I think it’s similar to vp-11682 or something similar…
  22. I treasure your expertise. You almost always make me smarter and provide resources that I barely realized exists. Thanks for Sharing. I will copy these down to my local file system,
  23. If possible, how would I get permission to the Mulbring Quarry fossil site? Also, can I go by myself or do I have to go with a group?
  24. Shellseeker

    Building a new sifter

    So, it depends on what exactly what you want to do... 1) Is it important to you that the weight of your sifter is low ? If so, why 2) Do you want to process as much gravel as possible based on your age , weight, strength? Each person is different... I want to move as much gravel as possible for me. It is not rocket science. More Gravel per unit of time means more fossils. I walk in to LOTS of sites. If I am walking in, I take a sieve that is as light as possible to reduce energy I expend to walk a possible 2-3 miles to a chosen location. IF I am taking a kayak or powered boat on the Peace River, I take a 24x36 Stainless steel screen, adding heavy duty buoyancy. Basically, as long as I have the shovel in hand, I want to load 6 shovel full of gravel on the screen and I expect the screen to float. After about 4 years as a fossil hunter, I and friends decided to figure out by measured experiments how fast we processed gravel across a 6 hour day of hunting. It is easy.. Count the shovel fulls, count the sieves and keep track every time out. Vary the size and buoyancy of your sieve. Bigger sieves , more buoyancy paid off.
  25. @Al Dente thank you. I was trying to get these two parts to match up. They looked like articulation surfaces so I went with it.
  26. PamAm

    Possible fossil

    Thanks! Wishful thinking.
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