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Found 326 results

  1. Finally getting around to working on a jigsaw puzzle I found in the White River Fm of Nebraska a couple of years ago. Pretty sure it’s a soft shelled turtle, but I’m not having luck finding anything like it online. The shell is eggshell thin and seems like it was leathery in life. There are a few bones included. Suggestions?
  2. ParkerPaleo's White River Prep

    Now that hockey season has ended and the lab is warm again, and perhaps due to my new found extra time in isolation, I am embarking on documenting my prep projects. I thought I would start the prep season off with something easy that should turn out fairly nice. Please welcome my new little friendly Oreodont, Miniochoerus gracilis. It came into my collection in the summer of 2013 and has sat jacketed in a box until today. This evening I concentrated primarily on consolidation and bulk matrix removal with an ARO, and still have a ways to go. The plan is to prepare the "down" side in the hopes of a beautiful orbit and zygomatic arch. I did notice a cross section of vertebrae on the rear of the block so there is probably some neck attached as well. I'm hoping there is enough matrix below the jaws to make a nice pedestal to sit on as well.
  3. While playing with my poo (the fossilized version), I noticed this imprint. It is adjacent to a bone fragment. I'm assuming it is the imprint of a piece that broke away from the bone inclusion. It looks a bit unusual/ornamental, but I am hoping it is recognizable to one of you brilliant bone folks. This is from the Oligocene, Brule Formation, South Dakota. @Carl
  4. Unidentified vertebra

    A friend of mine sent me some photos of a really strange bone, and I believe it is a part of a vertebra. It was found on a dredge island across the river from the Wando shipping terminal in Mt. Pleasant, S.C. I collected at the terminal for a couple of years so I know that the only fossil formations found there are the Ashley formation (late Oligocene marine exposure) and some unknown late Pleistocene formation. The processes on this vertebra (if it is a vertebra) are really strange. The primary mammals from the Ashley formation are cetaceans and dugongs, but this does not look like it belongs to either one. There are also some large fish, like billfish and sawfishes. Does anyone have any idea?
  5. Another White River Skull For ID

    This is another skull in my collection that look very similar to the other that I posted. I believe this might be another Hyaenodon. Please have a look and let me know what you think.
  6. White River Bear Dog Skull?

    I have had this interesting skull for many years and was hoping someone might be able to narrow down what it is. I do not have any collection information as the person who found it is deceased. I know it is from the White River/ Brule formation. My best guess is some type of Beardog Daphoneus? Any help would be appreciated.
  7. I have had a bunch of broken bits of Oligocene mammal coprolites sitting in a cup for years. I got them before I had a proper microscope. I decided to pick through another one last night. This one had what I thought could be a rodent incisor. So I started excavating with my X-acto blade. As I uncovered the bone, I realized it was not a tooth. I started noticing these very fine crescent shaped objects (which I unfortunately did not photograph). So I decided to give the poo a little vinegar bath overnight. As I lightly removed an unremarkable bit of fossilized fecal mass this morning, it split away revealing what might be a feather. I wet a bit of downy feather and photographed it for comparison. What do you all think? @Carl, didn't you have a coprolite with a feather inclusion? If so, did it look like this? The bone that I exposed is very furrowed and hollow. Of course this may not mean anything other than it is partially digested. Could it be a bird bone? @Auspex Here is the before and after photo of the coprolite fragment. Here is a magnified image of the a wet modern feather and the possible undigested feather.
  8. Since I couldn't go out to dig for fossils, I decided to go on a micro dig. Today's dig was in a coprolite fragment from the Oligocene. Prior to excavation, the broken face of the coprolite looked like this. You can see a little bit of bone peeking through. After about an hour of excavation under 40X magnification, I uncovered what I think is a rodent tooth and possibly a toe bone and claw??? What do you think? Does anyone out there know their Rupelian rodents? Grinding Surface of the tooth: Side view showing roots: Small toe bone and claw or an fractured toe/foot bone? Is fossil poop cool or what???
  9. Trying to confirm id of two jaw fragments. From an old family collection. Label: Oligocene - White River, Nebraska, Sioux County, USA Both noted as Poebrotherium (tiny extinct camel) First three photos are the first fragment. Based on the large canine tooth and size of the other teeth, I'm thinking it might actually be an oreodont? Last four are the second fragment. Smaller teeth and wider jaw. Maybe labeled correctly as poebrotherium?
  10. What are these shark teeth?

    These Oligocene shark teeth from Temse (Boom formation, Rupelian, Oligocene) were classified as Odontaspis robusta, but I'm not so sure about it, as some of them lack cusplets. Could they be Isurolamna/some kind of Isurus?
  11. Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to commonly observe the item of interest; paler orange indicates times in earth history to less commonly observe the item of interest. White indicates very little to no practical probability of observing the item of interest. Please keep in mind that the listed indicators are things like “conspicuous horn corals,” purposefully declining to address rare encounters with groups of low preservation potential, low recognizability, etc. Got additions/amendments, especially for the groups mentioned above? Toss them in the comments below! Thank you..... https://docs.google.com/spreadsheets/d/1tVm_u6v573V4NACrdebb_1OsBEAz60dS1m4pCTckgyA
  12. Shark teeth

    Found washed up on beach in Isle of Palms SC outside of Charleston. Are they Megalodon or White and what Epoch are they from
  13. Coral?

    I believe we have identified this coral as Dendrophyllia elegans, you be the judge. The photos below are my specimen and the link below them contains a justifiably potential candidate. Many thanks to the TFF members who participated in this ID quest - especially Pippa! I cannot get the link process correct, so the last photo is from the Oxford University Museum of Natural History in the Lyell Collection. It is listed as "Oligocene fossil coral, Dendrophyllia elegans, from the Lyell Collection".
  14. Coral?

    Having found this in my unidentified drawer and without the documentation as to the species. Help?
  15. I enquired a unidentified tooth from an oligocene sandstone quarry in Eurasia, im kind of convinced its a entelodont tooth,doesn't look like a crocuta one... (i will find it and show you the file)
  16. Diaphus sp.

    From the album Vertebrates

    Diaphus sp. Lanternfish Oligocene Menilite Formation Jamna Dolna Poland
  17. Horse teeth

    I purchase a horse tooth, supposedly form Dakota White River Formation Include 4 pictures. ID as Mesohippus S. Dakota Oligocene. These horses use to be 60 cm tall but my tooth is 48 mm long. In my opinion too big tooth for such a small horse. Is this possible?
  18. Been doing some work with a dissecting scope and noticed this serrated barracuda tooth. Tooth is from the Old Church Formation (Oligocene). Is this common for small barracuda teeth?
  19. Scophthalmus stamatini PAUCA, 1931

    From the album Vertebrates

    Scophthalmus stamatini PAUCA, 1931 Oligocene Menilite Formation Jamna Dolna Poland
  20. Eosphaeroma sp.

    From the album Invertebrates

    Eosphaeroma sp. Isopoda Early Oligocene Mallemort Département Bouches-du-Rhône France Possibly Eosphaeroma obtusum (von MEYER, 1858)
  21. With my last project wrapping up, this small skull was sitting on my desk and needs to get done. Way too much of my collection is in a half done state. Eumys is a cricetid, which includes modern voles, hamsters, mice and rats. When identifying one, the primary character I use is the shape of M1 and the fact it has no premolars. It's the only White River rodent I'm aware of with 3 teeth in the maxilla, most have 4 or 5 (I am prepared to be contradicted ) . M1 is very distinctive in that it has 5 cones. My plan is to remove the matrix from the side of the skull and expose the zygomatic (if its fully there). Will leave matrix in the orbits for stability. Then cut the base of the block below the occiptals and have the nose pointing in the air. I have been doing alot of pin and vice work to get it to this current state, I'll use a MicroJack-3 to get rid of the majority of the block. Not the greatest skull, and I have some better ones, but definitely something that you don't see every day.
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