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Found 167 results

  1. Oldest Primate Fossil

    https://phys.org/news/2018-11-oldest-known-ancestor-modern-primates-north.html Tiny jaw fossil with big implications for our evolutionary history
  2. Lance fm Vertebra

    Hi all, wondering if you could help me on this vertebra's identity, I found it in Wyoming's lance formation this past summer. I think it might be amphibian but I'm not sure. It's about a quarter of an inch long.
  3. Odd Mammal Tooth

    This was the first tooth I found on the day I spent on the white river formation in eastern Wyoming this past summer. I found a number of other small teeth and jaw sections from Leptomeryx, and small oreodonts along with what I believe to be a piece of canid jaw. However the identity of this tooth's owner has eluded me thus far. Any input would be appreciated.
  4. Thescelosaurus premax?

    Hi all! I feel like it's been too long since I last posted something of my own rather than commenting. Below is a picture of a tiny tooth which I initially believed to be crocodilian. I found it when surveying a promising anthill at a microsite in the Lance formation of eastern Wyoming. I was not disappointed! I ended up finding some very nice and very tiny fossils; a vertebra and a tooth both potentially myledaphus, a crocodile tooth (borealosuchus or other) and Richardoestesia tooth with almost invisible serrations! Nearby I found two tiny edmontosaurus teeth and a few partial croc scutes. I affectionately refer to this site by several names; 'The Whale Rocks" (as the harder gray capstones appear reminiscent of our cetacean friends), the sand box (due to the 'floor' of the surrounding area being covered in sand) or the 'Micro-Micro Site' as everything i've ever found there has been shrunken in size from your typical channel deposit. I want to know what you think of this piece which I now believe is one of the premaxillary teeth of the small herbivorous dinosaur Thescelosaurus and I other forum members agree with my analysis. (The tooth itself is only about 4 mm)
  5. Hey guys, Hello I am from Germany. That's why I apologize for my bad English. This tooth (top right in the picture) I have recently screaked from the US. The tooth comes from the Hell Creek Formation (Wyoming). It was sold as a "Raptor" tooth. He is about 7mm (0,28") long. I´m not sure, to which dinosaur the tooth belongs, thats why I asked my question in this forum. I hope, that you can help me! Thank you in advance and kind regards!
  6. Triceratops ulna

    Hello! This is my latest project, it’s a triceratops ulna pilled from Wyoming. Preservation isn’t the greatest but still a fun one!
  7. Piece of shell?

    Here is a small piece of something I found while sorting through some bone fragments from Lance Creek formation INC Wyoming. Is it a piece of turtle shell?
  8. White River Astragalus

    I found this little astragalus with PaleoProspectors in Wyoming in late July of this past summer. It was found during the day spent on a ranch with White River Formation Oligocene exposures. I was wondering what animal it belonged to. Leptomeryx? Poebrotherium? some sort of oreodont?
  9. Lance Formation Reptile Jaw

    Hey everyone! Feels like it's been a while since I've posted any of my finds. Life is busy as it can be at the moment so it's hard to find a time to post regularly. Here is a section of reptile jaw I found at a microsite in the Lance formation of eastern Wyoming. It was initially identified as belonging to a champsosaur, but I wanted to see what people thought on the forum. In the field: At home: (little un-erupted tooth)
  10. More ancient specimens found at mammoth recovery site near Cody Mark Davis, Powell Tribune, Wyoming News Exchange, Aug 29, 2018 https://trib.com/news/state-and-regional/more-ancient-specimens-found-at-mammoth-recovery-site-near-cody/article_aedecb6e-d253-57c4-888c-7e4f0240e15e.html More fossil vertebrates recovered from Buffalo Bill Reservoir http://k2radio.com/scientists-several-more-fossils-found-at-wyoming-reservoir/ Unfortunately, with both articles, a person has to deal with annoying pop-ups and / or advertisements. Yours, Paul H.
  11. Help with ID please

    I found this while out on a hike near my home in western Wyoming. This spot has fossils all over the place! Lots of rugose coral so maybe this is from the same epoch. This one was unique so I took some pics. I left it there and didn't have a ruler so I used a 12oz can for scale. It's very interesting and there is something segmented protruding out as well as some small circular objects as well. Thanks.
  12. Unknown Wyoming Find 2

    I found this rock just outside of Riverton, Wyoming in an area with a lot of chalcedony. I believe the surrounding material is from the Wind River formation. I am unsure if this is some sort of fossil or an interesting rock. Any information would be helpful.This was from the same location as the rock in my previous posting: I believe the surrounding material is from the Wind River formation. I am unsure if this is some sort of fossil or an interesting rock. Any information would be helpful.
  13. Unknown Wyoming Find

    I found this rock just outside of Riverton, Wyoming in an area with a lot of chalcedony. I believe the surrounding material is from the Wind River formation. I am unsure if this is some sort of fossil or an interesting rock. Any information would be helpful.
  14. So I recently bought this fish fossil from an antique shop, supposedly, from the Green River formation in Wyoming. The specimen is about 17 centimeters or 6 inches long, I purchased it because of its relatively low price, but most of all, it's quite large! I'm very limited in knowledge of fish, so I figured I would post it here on the forum, any ideas? I'll also add more photos if needed, thanks in advance.
  15. Hi Everyone, I suddenly have a work trip to the Black Hills of South Dakota coming up next week and I'd like to get out and collect some fossils along the way. I'm driving from Denver to Lead, SD and will be driving north on HW 85 and 18 through Newcastle. I'd be really happy to get a few stops in along the way and any potential information would really be great. Unfortunately, I won't have a ton of time to be able to stop and really dig, so some road cuts or target formations would be super helpful for surface collecting. I'm open to every type of fossil. I know there's a lot of fossils in that section of the state so I'm looking forward to hopefully finding some decent stuff! Thanks! Caleb
  16. Quick ID pt. 1: Croc verts?

    These two vertebrae were found in a Lance formation channel deposit last month. The guide w/ me said they were both crocodile. I thought I would post their pictures see what you all think. 1. Cervical?
  17. Priscacara done!

    I just have to brag about @Ptychodus04 a bit more. This man is a master at preparing fossil fish. Someday I hope to be a fraction as good as he is. Here's what he ended up with on the Priscacara I sent him. This was not an easy prep. The right side was completely covered with matrix and the left side exposed. He glued the pieces back together and started prepping on the right side top down. Excellent job Kris. Here's what he sent me.
  18. A few IDs from recent trip out west

    Hi all! I returned from my trip out west a few days ago and wanted to have some fossils identified before I do my big recap of my experience and my photos from the field. Here are some specimens I found of which I'm not certain of their identity. (This will not be my last post of this type from this trip). 1. Small theropod tooth (Richardoestesia sp.?, Acheroraptor temertyorum?). (There appear to be serrations on the front of the tooth but the majority of them seem to have worn off or did not extend further than midway through the tooth). (Near Newcastle, WY, Lance Fm.). 2. Turtle/Croc toe bone? (Near Newcastle, WY, Lance Fm.). 3. Larvae? (Douglas Pass, Green River Fm.).
  19. Bigfoot Finally Described

    The REAL Bigfoot. A nearly meter-wide Sauropod dinosaur foot, unearthed 20 years ago from mudstone in northeastern Wyoming, is the largest yet found is described in the attached paper. The other dinosaur skeletons found at the site have yet to be identified, but the size and shape of the foot bones indicate that it once belonged to a brachiosaur. https://peerj.com/articles/5250/ Maltese A, Tschopp E, Holwerda F, Burnham D. (2018) The real Bigfoot: a pes from Wyoming, USA is the largest sauropod pes ever reported and the northern-most occurrence of brachiosaurids in the Upper Jurassic Morrison Formation. PeerJ 6:e5250
  20. ATrip to Wyoming

    Hello, I’m a new member and a novice fossil hunter. I’m headed on a trip thru Colorado, to southwest Wyoming, and then down southern Utah. I know about the pay sites in Wyoming, does anyone have any suggestions fossil sites from central thru northwest Colorado, and eastern Utah. Sorry if this is a pretty broad question.
  21. Possible rare fish id

    Fossil Forum Friends, I put some fish up for possible trading on the trades section and wise @Fossildude19 reached out to me with a possible identification as a Amphiplaga brachyptera. This species makes up less than 1% of the known fish collected in the Green River Formation. Upon closer inspection it appears to be that species or it might just be a disarticulated Knightia. I really can't tell as I'm not a fish expert. Please provide your input. If it is a A. brachyptera can someone please PM me with a quote for preparing the fish and once it's prepared I'll get it framed at Michael's craft shop in a custom frame with an identification plaque. Shouldn't be a tough prep job. The fish is small and the matrix soft I just don't want to screw it up if it is a rare one. See attached. FYI @Ptychodus04 @sseth @FossilDudeCO @RJB
  22. I have a surplus of fossils from Utah and Wyoming. From UT I have a bunch of Elrathia and Asaphiscus trilobites. From Wyoming fossil fish mainly Knightia but I do have one Mioplosus. What I'm looking for are trilobites outside of Utah, ammonites, and shark teeth or any other kind of tooth such as Therapod, Cetacean, crocodile, etc. Here's a picture of some of the fossils. I also have some Chesapecten from Maryland sitting in my desk drawers.
  23. Fossil Fish Preparation

    FYI @Ptychodus04 @RJB I have some Herkimer Green River Formation fish I just dug up last month and they look really nice but half of them are covered in the sedimentary limestone. There's a bunch that are halfway covered. The matrix is real sticky and just doesn't want to come off. I tried pulling off chunks with some dental tools but had to quickly stop as that was damaging the fossil. Every time I pull up a chunk it takes the fossil with it. I'm thinking about getting a nice air scribe. I found a nice Chicago Pneumatic CP-9361 but have heard that these scribes can be tough on fossils. All these fish are from the split fish layers and I've heard this layer can be challenging to work with. Should I pickup the CP-9361 or go for another scribe such as an AERO/ARO? I can't seem to find an AERO/ARO anywhere. Paleotools sells a modified ARO but those are about $650 and that's a bit past my budget. What are your thoughts? I was also going to get a decent sized air compressor that goes up to 125 PSI. Thanks everyone. Here's a picture with some of the fish. The bottom right fish are good but the rest need to be prepared out.
  24. This is now my third post on my finds from last years trip to Wyoming. If you want to check out my previous posts click on these links - Theropod claw and Microsite Fossil ID. (* = two specimens of similar size) 1. Brachychampsa montana tooth (1 cm). 2. Thescelosaurus neglectus vertebra (2.5 cm). 3. Lonchidion selachos (?) Hybodont spine (3.5 cm).
  25. Rugose Coral?

    I found this interesting piece of rock while hiking in the Snake River Canyon NE of Alpine, Wyoming. My first thought was it might be a coral so I looked at images of fossilized corals and it most closely resembled Rugose Coral from the Devonian. Please check out the photos and let me know what you think. Thanks!
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