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  1. Nanotyrannus35

    Possible Ankylosaur or Nodosaur Osteoderm

    I have this piece of bone that due to the texture and shape I think might be an ankylosaur osteoderm. It also seems like it might have some predation, shown by the circled area. It's from the Lance fm of Weston Co. WY. Thanks for any help.
  2. Here is a rock with what I think are two invertebrate fossils from the lance formation in Wyoming. The rock is 2x1 cm 1
  3. Fragment takes up most of the sediment which is 1.5cm please not the serrations in the photos. All photos are the same with different lighting. @Troodon @jpc Is this actually a tooth fragment or are the serrations fooling me?
  4. svcgoat

    Lance Formation Sediment #6

    1 Last picture is cleaned up the groove was interesting
  5. svcgoat

    Lance Formation Sediment #5

    1. Looks like frill possibly?
  6. Jurassicbro238

    Help on ID for Lance Formation Fossils

    Hello, I've got some fossils from Niobrara County, Wyoming in the Lance Formation that need some ID if its possible. The scale bar is in inches (top) and centimeters (bottom). Thank you for your time. #1 I'm confident is a skull piece but I was wondering if anyone knew what bone or perhaps what group of animals it belongs to? I see a hole on the inner side that was most likely a passage for a vein, and there are smaller holes on the outside as well. I'm hoping it's identifiable because one of the edges is not broken and is natural.
  7. Dino Dad 81

    Tiny vertebra

    Hi all, This tiny vert comes from the Lance formation in Weston co, Wyoming. It's about 0.25"x0.25"x0.25". I'm wondering if the relatively large pleurocoel suggests that it's a tiny dromie. For all I know, it's not even dinosaur.
  8. Hello! As I've gone through what I've collected this past summer, I'm finding really interesting things that I took home with me. These come from Niobrara County in Wyoming. I've taken pics of various angles of the fossils. Scale bar has inches (top) and cm (bottom). I'm not completely sure what some of these pieces are so any ideas or suggestions would be helpful. Thanks in advance! Set 1: Vertebral Process Is it possible to ID a process this broken up? I'm thinking it's Edmonto but really holding out for Triceratops Set 2: Triangular bone A friend sug
  9. svcgoat

    Sediment from Lance Formation #2

    Here are more interesting looking items that I got through sifting
  10. svcgoat

    Lance Formation Sediment #3

    Here are a few more finds from sifting. #1
  11. svcgoat

    Sediment from Lance Formation #1

    I'm going to need ids as I go through this sediment here are some things to start
  12. I got a big box of unprepped material from the lance formation here are a couple pieces I started cleaning off. First piece Approx 6x5cm
  13. I've had these crocodilian teeth from Niobrara County in the Lance Formation for a while now, but I'm not sure how if its possible to ID them beyond "Crocodilian tooth." I've generally heard that the "sharp" morphology are Borealosuchus teeth and the short bulbous teeth are Brachychampsa. Is that a safe rule to follow? I've also noticed that there are some slight differences in the teeth I have (hopefully the pics make it visibile). They're small, but the two on the lower left have noticeable raised striations (not sure what to call it). However, the one on the lower right and on the top are s
  14. Jurassicbro238

    Lance Formation skin impression?

    Hello! I was wondering if this is a soft tissue impression. The specimen is about 2cm long and I think the rock around it is sandstone. It was found in Niobrara County, Wyoming in the Lance Formation. I would like to know what you all think!
  15. Dino Dad 81

    Baby Triceratops Frill?

    Hi, We found this roughly 1" x 1" x 0.2" piece in a box of rock and dirt I ordered from the Lance formation in Weston co, Wyoming. Could this be a frill section from a baby Triceratops? Such a beautiful little thing, whatever it is.
  16. Nanotyrannus35

    Possible Tyrannosaurid Bone

    I have this piece of chunkosaur from the Lance Formation. It looks like it might have the trabecular structure of tyrannosaur bone. It's from the Lance formation of Weston County, WY. Thanks for any help.
  17. Dino Dad 81


    Hi and thanks for taking the time to check this out. I've got a Dakotaraptor prospect from the lance formation, Weston Co, WY. I think the biggest challenge in IDing is the condition of the tooth--particularly the serrations. The specs look good to me and I think there's just enough left of the tooth to have some confidence in the specs being as follows: CH: 19.2mm CW: 10.2mm Mesial serration density: about 5 per MM Distal serration density: about 4 per MM Base cross-section: Almond, no pinch whatsoever Mesial carina: straight and serrations ap
  18. Dino Dad 81

    Lance fm egg shell ID

    Hi All, Any thoughts on what type of animal this came from? It's from Weston Co, WY lance formation.
  19. PaleoNoel

    Micro Claw-Lance fm.

    Hi everyone! I came across this little piece as I was sorting through some of the anthill matrix I brought back from Wyoming's Lance formation. When I first found it, I must not have recognized it as a partial claw as it ended up alongside other odds and ends (fragments of bone, gar scales & other misc. fossils) at the bottom of a pill bottle where I had deposited all of my pickings. This week, however, I emptied that pill bottle to see what was inside in order to organize all the micros I found from this locality (which will get its own post eventually). It's evident to me that this is a
  20. Hello Eveyrbody! I have a question about Tyrannosaurus rex teeth. A recent study has shown that T.Rex accounted for about 24% of the creatures in the hell creek formation. T.Rex were more common then edmontosaurus. Yet it is usually the most expensive fossil you can get from the hell creek/lance creek. So if Edmontosaurus were less common then T.rex then how come their fossils are way cheaper?
  21. gturner333

    Is this an ankylosaur tooth?

    I found this in some matrix from the Lance Formation in Wyoming and wondered if it is an ankylosaur tooth. The hash marks are 1mm. Thanks for any help.
  22. Seanrad09

    Another Lance Fossil

    Got another one than has me stumped from the Lance in Wyoming… any ideas guys? Thanks!
  23. Nanotyrannus35

    Lance Formation Fossils ID

    I have two fossils from the lance formation that I need help in identifying. The first one is I think maybe an ankylosaur tooth and the second one seems similar to the one from this topic http://www.thefossilforum.com/index.php?/topic/120940-lance-formation-toe-bone/ but it's bigger, and straight. These fossils were found in the Lance fm of Weston County, Wyoming. Thanks for any help. The tooth And the bone
  24. Hey all, wondering what this is. Ive never seen anything like it. Stumps me. Around 2.25 mm by 3mm Thanks!
  25. Nanotyrannus35

    Theropod tooth fragment with serrations

    I'd gotten this tooth fragment from the lance formation of Weston county, Wyoming, it has some serrations and I think that it might be identifiable. The curvature of the fragment. And with this last one, I'm not sure if I'm doing it right. A photo of the tooth with a millimeter scale to show serration density. (it seems to me that there is around 3 serrations per millimeter) Thanks for any help.
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