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Found 135 results

  1. Turtle Shell Thickness

    I was wondering , if the thickness of fossil turtle shell is relative to the size of the turtle, is there a generic formula for estimating how large the turtle would be based on shell thickness of a fragment ?
  2. This is a Manchurochelys from Liaoning. Do you think it’s genuine?
  3. Ganzhou Turtle?

    My friend has acquired a turtle fossil from Ganzhou. It is quite big. Is it a Jiangxichelys ganzhouensis?
  4. I'm running a paleontology camp this summer in Delaware. We can' actually do much digging because there are no fossils at the camp site. We do, however, have living fossils around that the kids can meet. I'd like to introduce the kids to the living fossils and show them the evidence of their ancient ancestors. We have snapping turtles (common and alligator), an alligator, horseshoe crabs, access to ginkgo leaves and magnolia, pileated woodpeckers aplenty, and triops kits are easy to come by online. Anybody have any fossils of these that they could part with? I have mostly marine fossils I can trade from all over the east coast, though mostly common stuff. From Delaware I have silicified pleistocene cyprus wood from Odessa, DE, belemnites, cretaceous gastropods, brachiopods (lamp shells), pelyceopods, and button corals from the C and D Canal (Mt Laurel Formation), plus various paleozoic tabulate and rugose corals that wash down the river from the Appalachians. I have oodles of shells, stingray plates, coprolites, and a piece of palmate coral from Calvert Cliffs (Miocene, Choptank formation). I have FLUORESCENT pleistocene shells from the Tamiami Formation in Florida. Plus, I have calamities and lycopods from the Lewellyn Formation in Carbondale, PA. The pictures here may not be the exact specimens and only represent a sample. If there is something specific from these locales that interests you, ask me. I might have something. Anyone willing to help me out? It doesn't have to be museum grade, so long as we can match it up to the modern version.
  5. My first post, so hopefully I can figure out how to post some photos of this find. I have been going out to the NSR some and have found the usual bone fragments, vertebrae, etc. but this was something unique for me. Thought I would post it to see if I am correct on the identification. From what I have learned this is probably a large piece of turtle plastron. It is about 1 inch thick, so I assume this was a big turtle? Has a unique pattern to the surface and the other side has what appears to be large scrape marks? Now that I have got started posting on the forum, I hope to continue sharing some of my finds. Thanks for any input. Tommy
  6. Found this guy today and wanted your imput. Is it turtle? If not, then what? Let me know!
  7. This bone appears to be stretching? I believe it's turtle, but help is always appreciated.
  8. Turtle Shell?

    Is this a turtle shell? It has some rib, so it seems pretty convincing.
  9. So I was wondering if these are fake or real. Opinions from the experts? I am sure we have all seen these before on the auction site. Number one. Number two,
  10. Weather was beautiful so I took a long 7 mile hike with my buddy at The North Sulphur River Texas. We mainly found footprints but we had a good time. Here's my finds of the day. The large piece of Protostega carapace was my favorite find. 7 mile hike in hip boots and sticky mud probably equals 10 mile hike. lol
  11. These are listed on "the auction site". Listed as fossil turtle heads from South Dakota. I'm sorry buddy, those are rocks, and not of the permineralized bone variety. You also get them for the bargain price of $7.99 with free shipping. I can't get to my wallet fast enough!
  12. Hi, There is this turtle skull for sale that is from the Kem Kem and i wanted to see if this is real (or if it has restoration work done on it) since this is the first turtle skull i have seen out of the Kem Kem. Thanks :).
  13. In 1996 I was working in New Zealand and purchased a turtle fossil at a gem and mineral show. I was told it was from the Gobi Desert, and that's absolutely all I know about it. It weighs 9.5 pounds/ 4.3 kg; is 10 inches/25 cm long and 9 inches/23 cm wide at the widest point. I've got several photos, and now I just have to figure out how to post them...I am not the most computer literate person.. It looks like I can only upload 1 photo per page? I'll try to post more...
  14. Kyiv turtle, 3 associated scutes

    From the album Dinosaurs and Reptiles

    Eocene Kyiv suite, Lutetian-Bartonian. Personal find. 3 fused scutes: C1,2 - costal scutes, N - neural scute, R- rib. Approximate position of the specimen is shown on the diagramm.
  15. Fish Skull Fragment?

    I found this fragment in a Cretaceous conglomerate. I am still trying to figure out the name of the formation, but it is either from a river bottom or sea shore. My first thought when I found it was a piece of turtle shell, but upon closer examination, it reminds me more of fish skull fragments I have found in other formations. I was hoping some of you might be able to provide some other perspectives. The piece is ~12 mm long, ~10 mm wide, and ~2 mm thick. It is slightly convex with a slight bumpy texture on the outside, although mostly eroded away, and some sutures at the very edge on the inside.
  16. Paper describes shell remains of eight fossils referable to Helopanoplia distincta from the Hell Creek Formation of Montana and North Dakota that, in combination, document nearly all aspects of the shell morphology of this taxon. Helopanoplia distincta is based on just two shell fragments from the Lance Formation of Wyoming. The new fossil material thoroughly supports the validity of Helopanoplia distincta. There is also a very informative map showing where the exposures are of the Hell Creek and Lance Formations. Joyce WG, Lyson TR. (2017) The shell morphology of the latest Cretaceous (Maastrichtian) trionychid turtle Helopanoplia distincta. PeerJ 5:e4169 https://doi.org/10.7717/peerj.4169
  17. Unidentified Testudine Carapace

    Hi, I've recently been sorting through my freshwater turtle pieces from the Bouldnor Fm. and have come across a couple of fragments that don't resemble the normal finds of Emys and Trionyx. I remember collecting them at the time and thinking how weird they looked but I presumed the markings were the result of damage etc. so didn't give them much thought. Interestingly I've found a reference in a paper from 1890 on the fossil chelonians of the Isle Of Wight that states: "There is a third species of chelonian, the remains of which are comparatively rare, and the outer surface of whose carapace is furrowed in lines, much after the manner of the larger species of recent land tortoises." This accurately describes the pieces I have, but as far as I know no large tortoise (or any tortoise material) has been collected from the Bouldnor Fm. and with the paper being nearly 130 years old I took it with a pinch of salt. I was wondering if anyone would be able to confirm if these pieces are actually from a separate taxa of chelonian or whether the markings could've been caused during diagenesis etc. Thank you, Theo
  18. North Sulphur River!

    I finally had a chance to hit the North Sulphur River again after spending the past few months working a lot and hunting different areas. It was pretty dry and picked over with lots of footprints but I managed to find a nice variety. I really like the color of the sea turtle shell and the base of the Cretaceous fish fin.
  19. I was out at North Sulfur River yesterday. It was terribly picked over. Do you start looking even at pieces of junk at that point. I found a couple interesting things, but not that noteworthy. The most easily found thing out there are Exogyra oysters. So when I saw this I first thought it was an oyster fragment and almost didn’t pic it up, but it looked different like a piece of turtle shell so I picked it up and threw it in my bag. I can see thin layering on top and a bit of what looks like the pearly surface of an oyster shell, but then I also see a tiny bit of what looks like porous bone structure on a couple edges. I think it could be a turtle shell fragment. I’d like to hear your thoughts and opinions. Top side of shell Underside. You can see some porous portions on top right. Porous structure. Definitely not oyster looking.
  20. Skin Fossil

    Hello, I found this little fossil while walking along the Missouri River near St. Louis, MO. The fossil is two sided and the pattern is the same on both sides. The fossil is thin so I wasn't thinking a turtle shell. The last two pictures are a picture of the top and bottom. Could it be a skin fossil?
  21. Hunting in the rain

    It rained hard most of the morning, It is not a lot of fun with water pouring down your neck, Thankful for baseball caps. Fortunately there are rewards... 4 of the Megs were unbroken and small. Largest was 1.75 inches. Some big chunks.. Land tortoise or sea turtle? This is the biggest complete piece that I have found. Finally, a likely rib bone.. just wondering if the groove makes this one identifiable.. Thanks for suggestions Jack
  22. Turtle Plastron

    This piece of turtle plastron was identified by Dr. Weems (an in hand look) as the sea turtle Carolinochelys wilsoni. I had been trying to I.D. it for a while before I was able to get it into his hands. It is about 1/4 of the plastron and this turtle is thought to possibly be the extinct ancestor of the modern loggerhead turtle (Caretta caretta). C. wilsoni is the only species in the genus.
  23. Is It A Fossil?

    Hi I am new to this forum. I live in Ca and collect minerals, fossils and as an amateur photographer, I am photographing some of my collections. These photos are of an unopened small geode (3 cm, or 1.25 inches tall). They are all of 1 specimen taken at different angles. Many decades ago I received a bag of small geodes all formed in the same light green volcanic ash. This was among them. No other geodes in the bag had this texture or pattern on the outside. I put it aside thinking it may be a fossilized impression from a prehistoric reptile or tortoise foot. I have never gotten a definitive answer. Sadly I can’t recall for certain the location for the source of the geodes, but perhaps it was Chihuahua Mexico. Is this a fossil, or merely some crystallization causing the surface to appear this way? Any help would be appreciated Thanks Tom
  24. Turtle non det.

    From the album Vertebrates

    Turtle non det. Early Cretaceous Sihedangzhen Liaoning PR China

    So I took the similar topic of another fossil ID on this site, but wanted to make sure it was the same thing. I found this 30 miles inland off of the East coast of SC, USA where I usually find megs, angustiden teeth as well as hemipristis teeth. But I have only seen similar things pulled out of Peace river in FL. Is this part of a Hesperotestudo?? Or could it be gator. One more picture