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  1. John Turgeon

    Need Help Identifying a Fossil

    Can anyone help me identify this item? I found it near the Badlands in South Dakota in the late 90s. It measures 2.5 " long and 2" wide. I have always been curious, but the internet wasn't so helpful back then.

    Mosasaur Vertebrae ID

    I'm hoping someone out there might be able to ID these vertebrae for me. I'm fairly certain they're mosasaur of some type, but I'm not very familiar with this vertebrate stuff. I'm thinking the other bone is part of a paddle. I found these in the Pierre shale of South Dakota on private property with permission.

    Campanian Lobster western South Dakota

    Calling all lobster aficionados! I collected these lobsters from what I believe to be the baculites compressus zone/upper campanian Pierre shale in western South Dakota. I'm trying to get a specific ID for these fellas. I've read about Paleonephrops Browni and Linuparus Canadensis being found in my area, but neither really seems to fit with these. Please excuse my unfinished prep work on the double, it's still in progress.
  4. Brevicollis

    Rex or Nano tooth ?

    Hello, as my budget increases, this complete surface find and worn Tyrannosaur tooth comes very close. But its listed as Nanotyrannus, and not Rex. But after I've read a guide on Tyrannosaur teeth idenification, im pretty sure its a young Rex, as im not seeing the typical Nano pinch at the base, but I think the tooth is also too bend for Rex. Which side are you on ? Sice : 1 inch Formation : Hell Creek, South Dakota, and before you ask for the County : Sorry, but no County was named. @FB003, @North, any Ideas ?
  5. Hello all, quick question for you guys who have more knowledge than me. Is this a real raptor claw? Seller states its from the Hell Creek Formation, South Dakota. Pictures are as clear as the seller could give me. Its about .58"/1.4cm. Thanks!
  6. Lori Peterson

    Found object

    I don't know how to use this site so I hope I'm doing this right. I found this flattened and petrified piece on the Missouri River in South Dakota. I'm so curious to know what it might be.
  7. I am going fossil hunting on some property I have in South Dakota this weekend. The Firesteel creek runs through it and I have found quite a few bison bones on quick 30 minute trips. This time I am spending 2 days along 1.5 miles of creek to look deeper If anyone has pro tips feel free to share
  8. Oklahoma State University, student discovers new dinosaur species, publishes findings Oklahoma State University, Sara Plummer , January 24, 2024 Paleontologists Discover New Species of Oviraptorosaur in South Dakota Jan 25, 2024 by Sergio Prostak The open access paper is: Atkins-Weltman, K.L., Simon, D.J., Woodward, H.N., Funston, G.F. and Snively, E., 2024. A new oviraptorosaur (Dinosauria: Theropoda) from the end-Maastrichtian Hell Creek Formation of North America. Plos one, 19(1), p.e0294901. Yours, Paul H.
  9. hadrosauridae

    Hell creek rib

    This unknown rib was recovered a couple months ago from a private ranch near Faith, SD. I haven't had time to start work on it until a couple days ago. I'm keeping track of my hours on this one just out of curiosity. I never tracked the work on any previous prep projects. So this was found partially exposed with a number of pieces found as float at the bottom of the hill. Everything surface was collected, then the rest of the rib was jacketed to remove. It took me 3 hours to uncover and remove it from the jacket, and then 5 hours separate and clean the pieces of the first section. 12 hours total to clean 3 sections, and then another 3 hours for the micro cleaning and reassembly of those sections. Its only going to get harder, because much of the rest of it looks to be heavily crushed and displaced. It also looks like there is a healed fracture to this rib, but of course, the modern break goes through the remodelled bone.
  10. Othniel C. Marsh

    Leptictis jaw

    I recently saw a 1.2cm long Oligocene mammal jaw from South Dakota, judging by the coloration of the specimen from the Brule Formation, up for sale. The jaw is referred to as Leptictis haydeni, but the description states it to be from a primitive weasel. Moreover, I have never seen any Leptictis material for sale and the dentition looks as much like that of the relatively similarly named but much more common Leptomeryx than any leptictid. Thanks in advance for any guidance Othniel
  11. Inexperienced, just got into fossil hunting this past summer
  12. quarterbaker

    Reptile head

    This appears to me to be the severed head of a reptile. It is slightly deformed post mortem. Scales or osteoderms are faintly visible in a few places. There is a branched structure on the underside that looks very much like a blood vessel. There are circular shapes at the end where the head was severed from the body, suggesting a spine and torn ends of major vessels. It was found in Deuel County, South Dakota, USA. The geology of the area is basically glacial deposits. No strata or matrix evidence is possible. It measures 60 mm x 30 mm x 35 mm and weighs 80 g. Is this a reptile head, or am I suffering from pareidolia?
  13. HynerpetonHunter


    From the album: South Dakota

    A top view of No.1. Found July 10, 2023
  14. HynerpetonHunter

    Heteromorphic shell showing- Scaphites

    From the album: South Dakota

    My favorite Scaphites from July 10 2023.
  15. HynerpetonHunter

    Carlile Shale Scaphites

    From the album: South Dakota

    No. 1 for future reference. One of the largest and most intact Scaphites I found.
  16. Greetings from New Jersey Have always dug (no pun intended but it seems to work) have always dug fossils and cool rocks. A recent road trip to South Dakota infused me with a love of rocks and fossils. I found a few but nothing spectacular. I look forward to finding productive sites to explore. Glad I found this forum.
  17. Hello everyone. I was flipping channels last night between an old western and other channels when I came across this show on the public t.v. channel. (mpt.org) It caught my attention because they were talking about fossils. I wasn't aware of the title, yet. I wonder if anyone saw it also. If not, the show followed the discovery of "the largest Triceratops" ever found. Big John. In the Badlands of S. Dakota. They interviewed the gentleman who discovered and, extracted it. I'm sure a lot of you know who this is. Then, the show follows Big John's journey to Italy, after it was purchased from the discoverer, where it was prepped. It was there that they determined how big "Big John" really is. Guinness Book of World Records was approached by the curator to classify it as the largest Triceratops. And, then the show follows the media firestorm created by Big John as it heads to an auction in France where it was sold for an unreal amount of money. Fortunately, it was purchased by an American and brought back here. The show reveals the purchaser at the end, and, where Big John is currently displayed. In a children's museum in Tampa. I'm sure this could be a sore subject for the professional paleo people on this site. But, I'm just curious to know everyone's thoughts. I feel, in a way, the story had a happy ending in that Big John is here and not in someone's living room on the other side of the world. I have other thoughts, but, will wait to see how this conversation develops. Thanks for reading.
  18. Went on a dig as a kid with a group called " Paleo Prospector's" and this was some of the stuff found as well as my last post. Some was identified on the spot but I have my doubts on some. First 2 was labeled "raptor digit" 3-4 labeled turtle jaw 5-6 triceratops spitter 7 freshwater shark vertebrae
  19. Need help identifying some fossils found during a trip I took with my family years ago. I know it was a paleontology dig out at Hell Creek Formation in South Dakota.
  20. Rick Strapple

    ID REQUEST - Possible fossil bone

    Folks, Attached are 4 photos depicting a an unknown fossil: Two horizontal, one each of both ends. The specimen we think is from South Dakota and is Cretaceous. Dimensions are 2" x 4", with a weight of 1.2 lbs. This high weight may be due to pre-mineralization or other external factors. If is is a bone, it resembles a metatarsal. I would appreciate any ID feedback from the group. Thanks .. Rick Strapple
  21. Fullux

    Dinosaur rib

    I'm interested in this rib end from the Hell Creek formation of South Dakota and was wondering if there was any way to identify the species. I've compared it to several large species that were native to the area and in my opinion, this piece compares very well with tyrannosaurus. Then again I'm no expert and would very much appreciate a second opinion. I've included examples of ribs from each species I compared it to.
  22. Frightmares

    Tyrannosaurus rex tooth

    From the album: Dinosaur Teeth

    Tyrannosaurus rex tooth from Hell Creek Formation, South Dakota.
  23. Tyrannosaurus rex (Osborn, 1905) Late Cretaceous, c. 67 Ma Hell Creek Formation, Isabel, Dewey Co., South Dakota, USA. It has been a dream since childhood to own a Tyrannosaurus rex tooth and my dream came true with this recent acquisition of a gorgeous T. rex 1.5” dentary tooth.
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