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  1. Hello again. What do you think? Do you see anything wrong with this tooth anything i should be aware of? Thanks
  2. Hey everyone! I know it’s a long shot, but I’m currently in Montana and will be for abt 1 1/2 more days, and was wondering if anyone had any ammonite sites in Montana, South and North Dakota, or Wyoming, I’d be willing to trade a spot, or take whomever it was out to Ernst quarries, or trade fossils for the site, if anyone’s interested in that, please let me know.
  3. Rexofspades

    Two Medicine Hadrosaur vertebra ID

    Hi! I got this Hadrosaur caudal vert from the two medicine formation. in Pondera County. I was wondering what part of the tail this bone would have come from? the seller says it is likely a proximal vertebra, but couldn't give any details on its placement. Is there any possible way you can tell what part of the tail this fossil belonged to? assuming a grown individual of the species. If exact placement isn't possible, Ill settle for general region. The centrum of the Vert is 2.7 x 2.3. x 2.2" and the process is 7.6" long in a straightline including the anterior points
  4. It's propably real and it has 10-15% repair. I don't know which species it belongs to (maybe Deinonychus or Dromaeosaur). What do you think?
  5. The virus put a damper on my Spring dinosaur collecting trip but I was able to get a partial one in for the Fall. I was able to spend several days at my usual Edmontosaurs bonebed but unfortunately only one day at a channel deposit in Montana where theropod/mammal material can be found. Hopefully next year will be more normal, Hopefully. Quite a few new members since my last trip so I will get into more specifics to get them a view of how I collect this material. First let me share with you a view of the collecting area and the LOCAL wildlife that we deal with on a
  6. RooBug

    Hell Creek Fossil ID Help

    Hello all, it's been a very long time and I'm posting from my phone in an area with no wifi, so I hope I've followed all the rules as best I can. I was out fossil hunting in the Upper Hell Creek in eastern Montana last year, and found this bone. (Sorry for the images, I will not be able to retake them for months.) It was found in a sandy mudstone and appears to be hollow (and very crumbly). Its about 10 inches long.My best guess is a Struthiomimus femur, but if anyone knows different please let me know. Thank you for any help you can give!
  7. patrickhudson

    Two medicine molar

    Found this little guy in the two medicine formation of north central Montana. What animal has very similar molars to humans? It looks like a lower molar - or is it a concretion molar? Ideas? Thanks for any info.
  8. Praefectus

    Tyrannosaur Tooth

    Premaxillary tooth EDIT: Changed from Tyrannosaurus rex to Tyrannosaurid indet.
  9. Praefectus

    Indeterminate Tyrannosaur

    Dimensions: CH = 41 mm CWB = 10 mm CBL = 16 mm MC = 18 denticles/5 mm DC = 14 denticles/5 mm DSDI = 1.29
  10. dinosaur man

    My Tyrannosaur research

    Hi I decided to make a post about my main research project right now on Campanian Tyrannosaurs specifically Daspletosaurus. Today I have found something to tell teeth from the Judith River Formation and Dinosaur Park Formation. This could also do with the Tyrannosaurs prey or locality. I found out that Judith River Formation Tyrannosaur teeth serrations are more circular and more round compared to the same time Dinosaur Park Formation Tyrannosaur teeth serrations. The Dinosaur Park Formation Tyrannosaur teeth serrations are more longer skinner and more chiseled like but not like other Tyrannos
  11. patrickhudson

    Frill? Chunkosaurus?

    My three year old was playing with a box of random Dino bones this morning and he handed me this one - which I hadn’t really paid attention to before. It seems like they’re vessel grooves on the smooth surfaces? I know it’s tough to see the symmetry on my pics, and I know it’s pretty chunkosaurus, but I didn’t know with the unique convex and concave surfaces including the unique surface texture if it was at all identifiable. Unique shape. Frill piece? Unidentifiable? judith river formation of northern Montana - milk river thanks folks
  12. Robski

    Montana Hadrosaur Bone?

    Greetings Found this section of Dino bone in a local antique shop. It was from an estate of a man who found it and a few others in Montana in the 1950s. Thought it was cool and it was listed as a Hadrosaur bone. Some great colours. I have included end shots to show the marrow in cross-section. I know there is not much to work with but would anyone know from what bone this section would be from? It is a long shot but ... it is worth a try. Best Regards Rob


    Coprolite? found in Morrison formation near the Henry Mountains UT.
  14. oilshale

    Echinochimaera snyderi Lund, 1988

    From the album: Vertebrates

    Echinochimaera snyderi Lund, 1988 Lower Carboniferous Serpukhovian Bear Gulch Montana USA Lit.: Lund, R. 1988 - New Mississippian Holocephali (Chondrichthyes) and the evolution of the Holocephali. Memoires du Museum National d'Histoire Naturelle Serie C Sciences de la Terre, 53: 195-205. Lund, R. 1977 - Echinochimaera meltoni new genus and species (Chimaeriformes), from the Mississippian of Montana. Annals of Carnegie Museum, 46 (13): 195-221
  15. matt4102

    Fossil ID- Teeth?

    These teeth were found in Eastern Montana in Garfield County. I assume they are teeth but don’t know what kind. Would appreciate any info anyone could give on them.
  16. matt4102

    Fossil ID

    Given to me by my grandpa. Found somewhere in eastern Montana. Wondering if anybody knows what it is. Thanks
  17. matt4102

    Eastern Montana Fossil I.D.

    Found in eastern Montana in Garfield County. Looks like a fossil to me but not sure. Any info would be appreciated.
  18. This topic is for information purposes of an experience I just encountered when looking at a Tyrannosaurid tooth on an auction site. You often see me request additional locality information when trying to ID a dinosaur tooth. I'm always concerned that the sellers provenance is not specific enough when it comes to material from Montana or Alberta to verify that the Formation provided is correct since it affects identification. Here is a good example of one case that paid off. In this case what was being offered for sale was several listings of Albertosaurus teeth from
  19. I found this tooth while in Montana! I have no clue what it is. I was told that you guys could help! If you guys need any more information, tell me Found Near Fox Crossing Montana, Judith River Formation. Hill County
  20. Bob Saunders

    Rhaeboceras halli

    A new edition to my collection. I was told that the original finder of this item listed it in his journal a Rhaeboceras Sp. and the seller said her source could not find it listed. A check of the internet proved it be an ammonite. Location matches his journal entry. SPECIES Rhaeboceras halli AGE Late Cretaceous - Upper Campanian Stage View on Geological Time Scale LOCATION Rosebud County, South Montana FORMATION Bearpaw Shale SIZE 2 1/4 " wide 5.8cm x 1 1/4 inch thick. CATEGORY Ammonite Fossils
  21. patrickhudson

    Dino claw?

    I was going through my box of chunkosaurus bones tonight to see if I missed anything from any of our first ever fossil hunts. Found a bunch of cool verts, pachy chunks, amongst other things. But this one’s got me thinking - especially after my buddy @CEP found A huge tyrannosaur claw last week. I’ve been crying myself to sleep every night that I didn’t find it. anyway - could this be a super worn tyrannosaur claw? JRF milk river Montana. The only asymmetrical part is the top where it’s the most worn. Worn tip - well - work everything. Do me a favor @Troodon or @jpc and give me som
  22. patrickhudson

    Pachy dome spike?

    Going through some chunkosaurus boxes tonight and found this piece that looked fairly pachy right off the bat. Maybe it’s a stretch because I’m still a little depressed that I traded away the pachy dome we found earlier in the year, but this piece sure looks like a worn spike to me. Am I right or am I wrong? Only the one angle shows the “spike” but I wanted to show all angles. The backside looks very pachy as well. thanks guys judith river formation of Montana - milk river
  23. patrickhudson

    Theropod jaw piece?

    Sorry about my not sweet picture skills. found Judith river formation of Montana - milk river. obviously a chunk of jaw, but we usually just find little croc jaws. This one is bigger, and the sockets just seemed theropod to me right off the bat. Grabbed a couple tyrannosaur teeth from my daughters display in her room and they fit like a glove. Super scientific, I know - but thoughts? thansk!
  24. Hello! This tooth has been offered to me. The id is theropod ind. It has very small serrations... From Cloverly Formation. What do you think? Thank you so much!
  25. Can you see anything wrong with it?
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