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Showing results for tags 'Lance Fm'.
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I found this tooth on private property in the Lance Formation, and I wanted to know what y’all think. Dr. Bakker told me ceratopsian (Lepto if I remember correctly). He said it was one of the teeth oriented toward the front of the mouth. I’m inclined to believe him, but has anyone else seen this before?
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Hi all, This rock comes from the Lance formation in Weston county, Montana. It's fossil-caliber solid feeling (as opposed to clay-like matrix in this area), but it's obviously not a solid fossil (unless it's a coprolite of mashed up stuff). There seem to be many fossils in it. The only thing recognizable to me is a couple of ceratopsian teeth. I just wanted to make sure it wasn't something I should leave intact (such as a coprolite) before I try to dismantle it...lol It's wet in these pics.
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Hi guys, I made this post about this small theropod tooth from the lance creek formation, Wyoming, USA. I bought it years ago and it was sold to me as belonging to a dromaeosaurid. It doesn't seem to me that it corresponds to any "raptor", but to a baby of Tyrannosaurus rex/Nanotyrannus lacensis. What do you say? Thanks in advance! Ps: the tooth is 1,2 cm/0.47 inch long and 0,6 cm/0.24 inch wide.
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I found this strange tooth in Lance formation matrix. It is very small so I apologize for my image quality. Not sure what to make of it maybe some herbivore dinosaur tooth or lizard tooth? It’s .1875 inches. Interested to see what other people think. Thanks
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I got another box of sediment will be going through it over the next week or so. If @Troodon or @jpc could help would be appreciated
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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.
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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?
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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. #2 At first I thought was warped gar scale. After cleaning it however, I found that it seems to have an articulation point on the end. I haven't seen any gar scales like that and I'm wondering if it's another fish I'm not aware of. Or maybe its not a scale at all?
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- cretacous
- hell creek fm
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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.
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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 suggested it might be a Triceratops epoccipital so I wanted to see what you all think Set 3: Skull fragments? There's a lot of blood vessels that would've run through these bones. I'm thinking they might be Triceratops frill (haha can you tell I want some Trike material?) Any thoughts or should I leave the ID at unknown? Either way, they look really interesting. Set 4: Scute? I don't see an identifiable pattern on it but that line running through it makes me think turtle scute. Set 5: Unknown I'm not sure what these are. They both have a really interesting textures running on the surface and they are very thin. Set 6: Jaw piece? Finally, this neat piece that I found on an ant hill. Looks like a jaw piece to me but not holding my breath.
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Here are more interesting looking items that I got through sifting
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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
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How variable are Hell Creek/Lance Formation crocodilian teeth?
Jurassicbro238 posted a topic in Questions & Answers
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 smooth. Is this just a difference in preservation? Identifiable traits to the species level? Positional characteristics? Individual variation? I'd like to hear any opinions on this. Thank you for your time- 16 replies
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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!
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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.
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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.
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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 appear to end about 2/3 of the way down Misc: the overall shape and sort of inflatedness of the tooth from tip to base seems to compare well to DR. Apologies for the difficult-to-see serrations. As you can see, I did my damnedest to make the most out of stumps. There's nothing to see in terms of serration shape, but the roundness and spacing of the stumps seems to give the impression of raptor vs blockier stumps with less space in between. Thanks!
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- dakotaraptor
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