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Found 299 results

  1. 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.
  2. Type of Oreodont

    Hi all. Please help me identify this Oreodont. Found in White River, Oligocene. Thank you
  3. I'm posting a current project in the hopes that it actually makes me finish it. I have a tendency to start several projects and set them aside for years. This Lepticitis was found in Wyoming in the late 90's. The initial prep was done by someone else (unknown) before the specimen made it to my collection. I've spent the last 5-6 hours under a scope removing glue, I would have almost surmised it was dipped in penetrant. It appears to have some abrasion damage as well, see the dorsal view of the skull above the orbits. I also took the opportunity to clean out foramen and do other various cleaning with pins and needles to get it to the state it is in now. Wish I'd though to get a pic before I started. Thanks to @jpc, I have some excellent photos of another Leptictis to base reconstruction off of. I'll post some more photos as the work progresses.
  4. Oligocene insectivore

    The garage was a bit chilly to work in today so I decide to work in the office at my scope a bit instead. I'd like to be able to identify this piece (Peratherium, Centetodon?) but I'm struggling with all the post cranial elements covering the teeth. Any suggestions from the perpetrator community for how to proceed?
  5. Oligocène Leaf ID

    I received this leaf,positive and negative ;10 cm,from the Oligocene of St Bauzille,south of France it's Diatomine rock,what could it be?
  6. Oligocene Galeorhinids

    Hey all, If anyone has any Oligocene Galeorhinids may you please post a picture? Also is there any record of them in the calvert formation of md? I know that’s Miocene but just a question. Thanks, FA
  7. Fossil on rock ID both

    We found a few of these stones. It looks like flint or Chert is this correct?? However there are white marks in the stone along with what looks like a shell just trying to ID if these may be fossilized organisms?
  8. Good day everyone, I'm looking into these two partial mammal skulls: An oreodont Merycoidodon and a Camel Poebrotherium. I'd like some help to find out if these are all real or have been partially fabricated, enhanced, composited, total fakes. Photos 1-4: Merycoidodon culbertsoni Oligocene Nebraska Photos 5-8: Camel Poebrotherium labiatum Brule Formation Oligocene-Whiteriverian Converse County, Wyoming
  9. Been working on a guy for over a year to get some white river material. He came right through Helena on his way to another fossil local in Canada. You cant see anything in this photo but some rather large jackets. Got a very nice disarticulated oreodont skull and a very nice rhino skull with other bones too. I also got a smaller jacket and now cant even remember what it is? This getting forgetful is a pain in the rear but at least I wasn't cooking? Ha! The oreodont is probably going to Australia and havent decided yet what to do with the other two projects? Ive really gotten/aquired/bought/traded for a heck of alot of fossil projects this year!!! To say the least!!! Im also just about broke! Still haven't finished my other White River projects from last year and I will also be getting a truckload of Fox Hills material in just over a week! Life is good. Or im a horder? RB
  10. Fossil tooth

    Need help ID with the fossil teeth all found near the Ashley river
  11. Gastropod id help

    Gastropod "experts", I need help in identifying this gastropod that I found on the west end of the Olympic Peninsula. It is from the Oligocene Period and the Jansen Creek Member of the Makah Formation Location: Clallam County, Washington. Let me know if you have any ideas. Thanks
  12. From the album fish

    Thanks Marguy!
  13. Echinoid "cores"

    Just thought I would post some pictures of these (Ryncholampas gouldii) echinoids that I cut/ground/sanded/polished into cross-sections to show the variety of the fossilization processes. The white one was found on the bank of the River in a limestone matrix. The other five were found in a different river bottom, all in close proximity to each other. Even though they all were in the same type of dark sediment/rock, they all have different combinations of materials/layers/etc. were all extremely dense and hard to cut/grind - like a granite/marble material. For anyone not familiar, one of the pictures shows the profile of a full intact specimen (a "before" picture). Another picture shows an "after" profile picture, showing how these were taken down to approximately 1/4 inch thickness. For what it's worth, the darker the material, the harder/more dense it is.
  14. Last weekend I went for a very short trip to the Carpathian Mountains, to find some Oligocene stuff. Every year it becomes more and more difficult to find nice complete specimens, because the locations are (unfortunately ) quite easily accessible and therefore there are plenty of fossil hunters (especially now during holidays). The first location is situated close to the place we commonly refer to as the Polish Texas :), called Bóbrka - it is the world's oldest (and still operating) oil mine. https://bobrka.pl/en/about-the-museum/ Nowadays it operates also as a museum, where you can see old drilling equipment and see the well up close The location is called Rogi:
  15. Unidentified Bones from White River Formation

    Hey everyone - I dug up two bones and put them together but can’t figure out what the bones are and what species they are from. I found it in the White River Formation and the first bone (first picture) is about 4 inches long, while the second bone (second picture) is about 6.5 inches long. I found the bones right next to each other. Does anyone have any idea what they are or if they possibly connect or are part of the same bone?
  16. Unidentified Oligocene... Something

    I found this in a Benton county crumbly fossil rich road cut that I'm fairly sure is Oligocene based upon the other fossils present. Other fossils are all aquatic and includes a lot of clams (Pitar) and a few snails (Siphonalia, Neverita) The fossil in question appears to have been a hollow tube that's been broken open, but I'm unsure if that's actually the case or if the end is simply folded in a way to give that illusion. I initially called it a bone in my excitement, but now I could see it as being plant matter of some kind. This is kind of a shot in the dark, as I'm unsure if it could even be identified based on such a vague fossil. Edit: It's about 2 inches or 5-6 centimeters
  17. Unknown Maxilla from Oligocene

    Hey everyone, I was digging in the White River Formation when I found this amazing maxilla of some creature. Through some questioning and conversations with various paleontologists, many people have different opinions of what this is. The responses I’ve had are all different, being Oreodont, Dire Wolf, or a species from the family of Brontotheriidae. The w shaped teeth might suggest Brontotheriidae... What are your guy’s opinions? The maxilla is about 6 inches long.
  18. Hi all, trying to get some id help with some teeth from the Brule Formation, Nebraska. Most i think are oreodont, mesohippus and similar. Unfortunately dentition is not my forte, so any assistance would be appreciated. Tried to take photos from three different angles to help. Set 1, 2-specimens Set 2, 3-specimens (lower 2 mesohippus maybe) Set 3, 2-specimens Set 4, 1-specimen Set 5, 1-specimen (mesohippus maybe?) Thanks for everyone's help again. MUCH appreciated, Paul
  19. White River fm. Mammal Teeth

    Hey everyone, I found these teeth in the White River fm of eastern Wyoming last summer and wanted to see what people on the forum thought they were. 1st is what I believe to be an oreodont tooth (possibly Merycoidodon). It's .8 cm wide and 1.5 cm from root to crown. 2nd I believe may be a Poebrotherium tooth but I'm unsure. It's about .5 cm wide and .9 cm long. 3rd may be from a Leptomeryx but I'm not sure. It's about .4 cm wide and .9 cm long.
  20. Nebraska

  21. From Badlands National Park

    Any idea what this might be? Or even what body part (skull?) We found this hiking in Badlands National Park in western South Dakota. We were hiking through bluffs made of Oligocene sediments that were rich in mammal fossils. Unfortunately no scale in the photo, but it was about 12 cm long and 10 cm wide.
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