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Found 461 results

  1. Hi everyone! I saw these few mosasaur teeth online for pretty cheap and I'm wondering if they are real?
  2. Hello! Does anyone know of any good references for differentiating between Oreodont and camel dentition, particularly in regards to the little jaw sections that are frequently found in White River deposits? I’ve been unable to find any good literature on the topic and am having some difficulty with differentiating between the two.
  3. Fish Fossil Identification

    Can anyone please help identify this fish fossil? Thanks!
  4. User friendly Invertebrate fossil guide

    Thanks to my recent forays into the depths of paleontology academia, a new contact at the University of Nebraska, Lincoln sent me the link to this free publication. While the art is a bit, um...well, you will see, I had my reservations...but this is a handy guide for fossil hunters, particularly newbies and youngsters in my opinion. While written with Nebraska inverts in mind, it will be a useful reference for just about anyone. I admit, i learned a few things! Record in Rock: A Handbook of the Invertebrate Fossils of Nebraska Roger K. Pabian Anyway, via the free digital commons at UNL: https://urldefense.proofpoint.com/v2/url?u=https-3A__digitalcommons.unl.edu_cgi_viewcontent.cgi-3Farticle-3D1002-26context-3Dconservationsurvey&d=DwMGaQ&c=DwXS7JuQSqHJbC-G1sthng&r=7ti8Y0Kje7atvlMPwljPq5q_OneMv_iJXoTY9cY7QCY&m=ljwm_2jDjaGm8VsOm0YAsuhsrRuI40Dj2PZl5y_PIJo&s=9dVvxFcO5LceztpM8OCcAnP8zM3eLttRjEWNbRNzgpE&e=
  5. Identification

    I also need help identifying this Shark I bought it a couple years back?
  6. Shark tooth

    I found this in Gainesville, Fl if anyone can help me identify the tooth that would be great.
  7. Hello, The photo below is my personal collection of Keichousaurus. The bones of this piece seems very fragile to me. I am considering of applying paraloid b72 dissolve in acetone in hope of strengthening the bones. Any thoughts or suggestions are welcomed!
  8. Possible claw?

    Wondering if this is a rock or some type of fossil claw. Found outside Terry, Montana in the badlands.
  9. Hello there, I bought this ammonite fossil several years ago from Nepal. Can anyone help identify what kind of ammonite is this? Thanks!
  10. Harding sandstone question

    Hi guys, I recently purchased some processed Harding sandstone, I was looking for unprocessed stuff but I could not find any for sale so I had to just go with this. The fossils arrived today and I have been examining them with my microscope, I find this stuff very fascinating. My question is regarding these fossils here: the ID guide that came with them claims they are sharks but I find this strange, I believe chondrichthyes only appeared in the Late Silurian so how could this be? Are they something else, and if so do we know what that something would be? Also if they are sharks would we not also expect to find their teeth, yet they seem absent in this matrix. Thank you, Misha
  11. Hello! My message today is about the definition of a "find" accidentally seen in the Internet. They write about the teeth of the alleged Coryphodon originally from China. But isn't it a horse or bovine? Although, judging by the photo, there may be a fossil? Thank you for your opinions!
  12. fossil fish ID reference

    I got back from Kemmerer with a dozen fish fossils from the Ulrich quarry. I have not been able to find a reference book to describe field marks for identification. I would appreciate any suggestions. Thanks in advance.
  13. Fish Fossil Identification

    Can anyone please help identify what this fish fossil might be? Thanks!
  14. Hello Folks, Currently going through the collection with a view to cataloguing and labelling. Purchased this ammonite a few years ago. It was labelled as Peltoceras from the North Yorkshire Coast. It looks like a nodule from that area but the ammo does not look like a Peltoceras in humble opinion. I cannot see the keel either as it is a partial and it is not visible - likewise the whorl cross section. Can anyone help with the id, please? Many thanks, Hamish
  15. Possible crinoid? We’re new to this!

    Hi there, thanks for your help. My son, eight years old, found this great rock while out on a hike in Central new York. We are trying to identify if it is an imprint, and some basic search is seem to point to a crinoid imprint. Can anyone give us more information about this? Thank you!
  16. What kind of shark is this?

    I found these at Bolivar Peninsula in Texas. I'm looking to identify the fat dark one on the left. I'm pretty sure it's a sharks tooth, but it looks very, very old due to erosion. Also, is the bottom one a tiger shark? Thanks in advance for the help.
  17. White River potentially hollow (avian?) bone

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This small bone appears to be hollow, which indicates to me it might be avian but that may or may not be the case. It does have a ridge/process on the lateral surface which may aid identification. Location (as stated above) is Weld County, CO, on the Brule Formation. Thanks!
  18. White River Teeth ID

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. The following are two teeth that I found very near to (but not attached to) a piece of jaw bone. My current hypothesis is that these two teeth are associated with the same jaw. From Weld County, CO. Though hard to tell from the pictures, tooth #1 does have a distinctive ridge at the apex of the crown, though this could just be wear. Tooth #2 appears only to be a fragment, and a small fragment at that, and so may or may not be identifiable unless it turns out they’re from the same animal and the first tooth is identified. #1: #2: Thanks!
  19. White River Small Partial Vertebra ID

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. This is a small partial vertebra, collected in Weld County, CO on the Brule Formation. The piece next to it is one of the transverse processes, which was barely attached when I collected it but finally unfortunately broke off when in my bag. Any identification appreciated. Thanks!
  20. White River Formation Small (toe?) Bones

    Hello, everyone, Lately this summer I’ve been doing a bit of casual fossil collecting (with explicit permission!) on some land that a very close family friend owns in Weld County, Colorado that has a lot of exposure of the White River Formation, and I’ve collected a sizable amount of material including some pretty awesome finds. Being an amateur, I need some help identifying some of the fossils I’ve collected. Since the forum has a photo upload limit per post, I’ll be making a few threads for different finds, I hope that is ok. These are two small bones that look very similar, from Weld County Colorado. To me they look a lot like the toe bones of ruminants like deer, but I’m wondering if anyone has any better or specific guesses. #1: #2: Thanks!
  21. Hello, Folks, New to the Forum. I am currently going through the collection in an attempt to systematise it and catalogue it properly before I pop my clogs. I came across this ammonite which I purchased online some time ago. All it had with it was South America Cretaceous, which is a start, I guess. Can anyone please help with possible provenance and id? It appears to be preserved in some sort of black and white calcite, and it occurred to me that it might be from Peru, but I could not find anything like it in any searches. I will attempt to describe it - apologies for any poor use of nomenclature. It has a series of well-defined ribs which bifurcate before they cross the venter. There is no keel and there appear to be four maybe five constrictions per whorl. There are occasional secondary ribs which fade out about a third of the way down the flank. I hope the photos are of more help. Any help much appreciated. Regards, Hamish
  22. trying to identify another find

    The front, back, side and bottom of whatever this could be? I could not find anything to measure it with but for now hopefully the pictures alone help for the meantime. The shape of it reminds me of a bone for some reason so that's my guess as to what it could be; not quite sure of what this texture on it is though, i scraped a bit of it off fairly easily and it was dusty brown coming off of it, but not too hard when scraping the surface it barely had any resistance. I tried scraping the exposed part of my other find; the iron concretion to compare the 2 and the concretion was much more durable on it's exposed part to try ruling out if it is just another ironstone concretion. It was found in the same brook called "big brook preserve" in central new jersey in the united states. Another possibility that I've came up with is that this find might be a concretion but not nearly as old and formed yet. Right now it could be anything. Thank you to whoever responds and helps with this post; very much appreciated.
  23. I am a complete noob when it comes to fossil hunting. I recently got into it, along with my oldest daughter, and decided to go to Post Oak Creek in Sherman, TX. In the four hours that we sifted through the creek bed, we were able to find over 95 shark teeth. However, we did end up with a few of these random items as well. I know most are probably geological formations, but I wanted to bring them before some more experienced people to see if any were worth keeping. I can provide better lighting and closer shots of individual items if needed. Thanks in advance for the help!
  24. Ammonites Id

    Hi I've been gifted a plate with different ammonites in it. As it comes from a second hand store, there's no record for provenance,age and all other infos. I'd appreciate any help with the identification. Thanks Back of plate:
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