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Showing results for tags 'montana'.
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From the album: Invertebrates
Sairocaris centurion Schram & Horner, 1978 Carboniferous Serpukhovian Heath Shale Formation Bear Gulch, Fergus County Montana USA -
Recently acquired this beautiful T. rex tooth, just over 5cm / 2” length. Such teeth are typically dark brown / mahogany coloured but this specimen appears to have escaped the usual staining. The location of find (Hell Creek Fmn, nr. Mosby, Garfield Co., Montana, USA), basal rectangular cross section and thicker enamel supports identification that this is a Tyrannosaurus rex maxillary tooth. The fact that the whitish / pale colouration is consistent throughout, absence of pitting / “dried out” appearance / absence of splintering would seem to preclude sun-bleaching.
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- tyrannosaurid
- tyrannosaurus rex
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Good evening to all my paleo peers! Tonight I’d like to share with you a selection of some of my favorite fossils found this year. I was lucky enough to spend three weeks in Montana over the summer, along with a few other fossil hunting opportunities here and there. As we hop into the New Year I'll kick things off aptly... Frog Radioulna-Judith River formation, Montana One of my all time best single fossil hunting days was spent in late June on a microsite in the Judith River badlands of northern Montana. Among the teeth of crocs, hadrosaurs and dromaeosaurs was this absolutely tiny
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Hi all! This is a piece of fossilized bone from the Cloverly Formation of Montana. I thought that the structure of the trabecular bone looked very similar to that of theropod bones but needed a second, third, fourth, or how ever many more opinions. Thanks! (Theropod bone cross section for reference)
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This fossil was recently handed down to a friend of mine. It was found on a family member's ranch near Cut Bank Montana in the 1950's. He remembers it being used as a door stop when he was a kid! What do we have here?
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Found in the JRF hill county - I always figured they were unguals of some kind and just never gave it much thought. But I really don’t know what they are. It’s been suggested maybe a part of a vertebral process? Any help would be awesome.
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Hi all, These two teeth came from the same seller and were put up for sale at the same time. They're so odd, that I thought it might be helpful to post them together since, if they come from the same animal, perhaps they provide more information as a pair than either would alone. Ricardo premax? Pterosaur? Acheroraptor? From the Hell Creek formation in Garfield, Montana CH: About 10mm (both) CBL: Tricky enough that I didn't measure, but can try if needed CBW: Tricky enough that I didn't measure, but can try if needed Mesial Serration Density: about 1
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- montana
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Curious about iron and pyrite in the Hell Creek Formation
Maniraptora posted a topic in Questions & Answers
Hey all! When I went on a collecting trip in the Hell Creek Formation in Montana, there were many iron concretions, and I've noticed that some specimens from there appear to be iron-stained. This makes me wonder if pyrite could be among the minerals involved in fossil preservation there. Are some of the bones found in the Hell Creek pyritized, and how could those be distinguished from others preserved differently? If so, do those Hell Creek specimens ever develop "pyrite disease," and what would be the warning signs to look out for? Thanks so much for sharing your knowledge! -
Triceratops Horn
FightingUrukHaii posted a topic in Is It Real? How to Recognize Fossil Fabrications
Purchased this piece in 2018, but now have concerns about its authenticity. Main area of concern is the base of the horn where the outer layer has chipped away to reveal a white-ish interior that looks a bit like cement/plaster. There is a slight glint to the white material. Any help is much appreciated + can upload more photos if necessary! -
Hello, Can someone help me identify these two Didymoceras pieces to the species-level? They are from Montana and both were repaired from a few fragments, though neither is said to be composite. From what I can tell they are in the 10-15cm range in terms of size. 1. This one seems to be part of the inner whorl, and based on how close the coil is I think D. cheyennense might be excluded, which leaves either D. stevensoni or D. nebrascense? Also in the 3rd photo there is a strange mismatch between the fragments...a poor fit or composite perhaps?
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Hello everyone, I recently finished preparing some ribs that I posted in the fossil preparation category and am having some trouble IDing them. One is fairly complete and the other 2 are fragments. They were found grouped together in Garfield County, Montana on a ranch. I think they resemble some Thescelosaurus ribs that I've seen in some papers but not enough to be confident in assigning an ID. Here are front and back views of each rib individually. I also found numerous bits of other bones in the jacket one of them being what I think is a ca
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- cretaceuos
- dinosaur
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I recently had the opportunity to purchase some jacketed fossils from a ranch in Garfield County, Montana in the hell creek formation. I bought 2 jackets, one with several small ribs present that I am currently working on. Another containing a single bone that I think is a hadrosaur pubis. One thing that surprised me was the wealth of smaller bits of bone present in the jacket I'm sure this is an amazing microsite I would love to see first hand. There were some really small bones that I don't think are identifiable but regardless very cool. This one with a r
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Hi @Troodon, I've got one more for you. It's from the Hell Creek formation, Power River co, Montana. It's 7/8" long, but might have been more like 1.5" long if complete, since the point looks like it'd get very slender and long. Potentially with left blood groove swinging up around the top. (The blood grooves are very asymmetrical in trajectory.) Thanks!
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Hope everyone has a good weekend coming to them. Any thoughts on these claw pieces? 1: Hell Creek formation, South Dakota 1 1 1 1 1 2. Hell Creek formation, Garfield county, Montana 2 2 2 2 2
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I recently bought this ammonite from montana, any idea on its genus, There are baculites within the matrix surrounding the ammonite, so its Cretaceous, probably from the Bearpaw Formation? but I cant decide what genus it might be? a few candidates ive seen are Holoscpahites, rhaeboceras etc, any help on narrowing it down?
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- cretaceous
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Hello! I have these 3 claws. The big one was identified as strutiomimus but I don't know the id of the other 2... The small hand claw has restoration on the base (not very good restored) They are from Garfield county. Thank you so much!!
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Hello, I am making a great of in-situ pictures of my fossil hunting trips for this year. We now have a foot of snow in the ground so fossil hunting season is over. ☹️ These pictures occur in Wyoming, Montana, South Dakota and North Dakota. Mostly Cretaceous aged sites but some Eocene from ND. They are mostly tooth related. I hope everyone likes in-situ pics as much as I do!
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- eocene
- north dakota
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Hello, is this a fish scale? It is about 1 cm wide at the widest point. It is complete and very nice looking. Any help will be appreciated! Found in the JRF with crocodile, fish verts/teeth, turtles, and some dinosaur related fossils. It is very thin with the enamel (correct term for this?) present on the one side. Thx!
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- fish scale
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Can radioactive fossils damage other specimens?
Maniraptora posted a topic in General Fossil Discussion
I know next to nothing about radioactivity-- enough to know licking fossils is inadvisable, although I'll admit that wasn't terribly disappointing news. What I'm wondering is whether specimens not radioactive enough to endanger a person are capable of damaging other specimens. Is there a need to segregate displays here, or am I just confused about the mechanics of this? My specific reason for asking is that at the moment I'm planning for my current favorite mineral specimen (which I am babying forever), an almandine garnet from Broken Hill, New South Wales, Australia, to share a small shelf ar -
The Judith River Formation - Tooth ID, Faunal List & Localities
Troodon posted a topic in Questions & Answers
More and more dinosaur material is becoming available from the Judith River Formation. I see lots of misidentified material and some with questionable localities that might fit other deposits. I would like to summarize what I believe is currently known and published. If you see any omissions or errors, please let me know. Not a lot of good maps out there to show the formation but here are two. In general, the exposures are in North Central Montana. Horner describes the formation on the western end is near the east end of the Sweetgrass Hills (very thick about 152 meters) and- 9 replies
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- late cretaceous
- judith river formation
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Hi I am going to Wyoming, Montana and maybe South Dakota with my brother in late May and very early June 2023. And we would of course like to look for dinosaur fossils. We know we are not allowed to collect on "State land". But can anyone help with contact to a private owner of land with dinosaurfossils. So we can pay for a couple of days and bring a few things home to Denmark. (I know of Paleoadventures). Hope someone can help us. Thank you and kind regards Torben
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Hello, I am going to post a tooth I found a few days ago. I will try to follow the theropod tooth description post on the photos and info. Letme know if I am missing anything. Thanks for any help. It was kind of hard to miss! Fmtn: JRF State: MT County: Hill County CH: 33 mm
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- montana
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Picked up a vert, supposedly found in Montana in Hell Creek formation. It's a little crushed but otherwise intact. Any reason to think it's not Edmontosaurus?
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Found this in hell creek formation Montana. Fossilized bone? Any idea what it’s from?
prehistoricpeasant posted a topic in Fossil ID
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My son picked this up while visiting his grandpa. We aren’t sure but know it’s probably a concretion. Would love it to be a real egg!
