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  2. Trimerorhachis skull?

    Agree, not a skull.
  3. Fossilized turtle?

    Lol those are some verry large words. But thanks for letting me know a little more about what it is. I'll do some research.
  4. Fossilized turtle?

    It does look like a turtle but I agree with septarian nodule
  5. Holzmaden

    Some of my finds from the lower Jurassic of Holzmaden. They were mostly found in the quarry Kromer near Ohmden (http://www.schieferbruch-kromer.de/). I have found different types of ammonites and belemnites but recently I focused more on vertebrate material. Vertebrates are not very common but its not impossible to find teeth and bones. I found most of the teeth in the "Schlacke", a layer with many fish parts. The most common teeth are teeth from Steneosaurus bollensis (crocodile). You can also find Ichthyosaur and Plesiosaur teeth.
  6. Fossilized turtle?

    Welcome to the Forum! I think, it's better to call it a septarian nodule / concretion.
  7. Fossilized turtle?

    So I found a turtle fossil and just want to know a little more about it and the rock inside it.
  8. I'm really liking the two complete Pecopteris fronds that cross each other and are attached to the branch. Fourth photo down from the top on the right side. Only that Annularia bouquet is SOOOOO appealing!
  9. My Collection

    Bothriospondylus madagascariensis Size: 56 mm - 2 1/4" According to the seller the location of the tooth is Kamoro, Madagascar however not sure if this is accurate. Kamoro is within the Mahajanga Province though and there is the Kamoro river that runs through that Mahajanga basin. Also the seller states that the tooth belonged to the dinosaur's maxilla or predental - If anyone can explain in what position a tooth like this would be in a sauropod's mouth let me know thanks! Archaeodontosaurus descouensis Size: 30 mm - 1 1/4" According to the seller the location of the tooth is Kamoro, Madagascar however not sure if this is accurate. Some additional photos next to a scale Two Bothriospondylus teeth next to each other (first photo). A rooted one and another tooth with a huge crown. Who knows if the tooth with a big crown is a totally different species yet that's the cool part Second photo are my large sauropod teeth lined up together for comparison of their sizes! All of my sauropod teeth lined up @Runner64 as requested!
  10. Marble Mountain trilobite id

    Notwithstanding the useful update on the systematics of Mesonacis fremonti, I agree with Brett that there isn't anything in the photos that is enough to be diagnostic of any particular trilobite species. Don
  11. number of bones for school math book

    Hello Gonzalo, and Welcome to the Forum. Have you had a look at THIS WEBSITE? Good luck, and welcome again.
  12. Carnivorous mammal skull ID

    I can't say, except to guess it may be from the White River formation (Oligocene). Others will be along who have more experience with skulls and can offer a more confident opinion: @jpc. However, it is a nice skull, looks like all the teeth and other parts are there. It should be a great specimen when it is fully prepped. Don
  13. Marble Mountain trilobite id

    The website is referencing only one species, Olenellus is still a valid genus. Olenellus fremonti Walcott 1910 was reclassified Mesonacis fremonti by Resser 1928. It was later reclassified "Fremontia" by Raw 1936, and many authors have applied each of these various names over the years. Fortunately Lieberman 1999 sorted it all out. "Olenellus fremonti" and "Fremontia fremonti" are synonyms of Mesonacis fremonti. Lieberman, B.S. 1999 Systematic Revision of the Olenelloidea (Trilobita, Cambrian). Peabody Museum of Natural History, Yale University Bulletin, 45:1-150 PDF LINK
  14. I am headed to Kemmerer with my son to look for fossils. I am aware of the quarries in Kemmerer and want to know if there is anything that we should not miss on our road trip or around the area. We have 5 days to explore. Thank you!
  15. Giant Tortois Osteoderm?

    You haven't been paying attention, Mike . . . Humans normally have sesamoids in their knees -- they are called patellae. We don't deal with equine medicine here, so calling a "distal sesamoid" a "navicular" is confusing and inappropriate. This is veterinarian shorthand -- a nickname for the bone based on nothing more than its perceived shape. These are equus horse naviculars in paleobiology-speak, and they are not sesamoids:
  16. Canyon Lake odd balls - Texas Cretaceous

    so here's another question for y'all. As I am an avid amateur I am trying to learn to identify what formations I am finding stuff. I had understood that if you found orbitolinas that was the zone that sea urchins would be in. I have yet to find that to be true. I have found at least four nice roadcuts with loads of orbitolina and nary a single sea urchin. Am I just particularly unlucky?
  17. Identifying layers of sediment

    You are welcome. I collected the brooks over about 12-15 years from the early 80's up to about 2005 before moving here to Austin. In all that time I think I maybe only found one or two teeth in the actual bank of the stream and that was always the lower Navesink. Every other tooth or bone fragment was sifted or surface collected off of a gravel bar, above or below the water line. I also learned to ignore the suggestions that teeth were better or more plentiful up, down or beyond any one area. Over that time I found great stuff all along the creek from well above Boundary Road to well below Hillsdale Road. The only exception was oysters and other shelly fossils which were way more plentiful closer to, and below Hillsdale. Remember the formations are all in down dip to the east so that what is high on the bank at Boundary may be at stream level near Hillsdale.
  18. Today
  19. Carnivorous mammal skull ID

    Could someone please help me identify this mammal skull? It has no associated geographic information.
  20. Fossil ID

    Well Dave's 64 maybe you would like to see it in person..
  21. Identifying layers of sediment

    Thank you for the article! Makes more sense now distinguishing the two & yeah I would never dig into the bank of a 40ft overhanging cliff.. not that bright of an idea, luckily those people weren’t killed. I just saw the layers along the banks and was curious which ones majority of the teeth were eroding out of.
  22. Hey everybody, My team writes math textbooks and we want to include dinosaurs in them. We're trying to find a document that states the amount of bones (approx.) in different kinds of dinosaurs. I would really appreciate your help! Thanks, Gonzalo from Uruguay
  23. Unidentified crocodile bones from Holzmaden

    Thanks @Natalie81 Probably my find of the year so far ...
  24. Tiny theropod tooth ID

    What a little beauty . Congratulations on your fantastic addition to your collection. Great photos too. Cheers Bobby
  25. Monster fish find - Lepidotes

    Thanks Liam and good luck! Another exceptionally rare Wealden recent find is this sauropod tooth. It's nice to have the original surface detail preserved so nicely. Similar to camarasaurid and diplodocid type teeth.
  26. This one is small. My son is curious to know if you can help us ID the long fossil with the tiny legs. He was wondering if it could be some kind of very small shrimp? This was found on the shores of the Potomac River in Westmoreland State Park. The beach is surrounded by high clay cliffs, and is known for an abundance of sharks teeth. The long, slender fossil in question measures approx 8 mm long.
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