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Found 224 results

  1. Troodontid or Dromaeosaurid teeth?

    Hey everyone, I came across these teeth online; They're being sold as an Acheroraptor teeth, but seemed odd to me and reminded me of some recurved Pectinodon teeth I had seen elsewhere (given their small size, too). [Tooth 1] The tooth was found in Hell Creek deposits in Carter County, Montana. I edited the seller's images together to make some features more visible. Its total height is 5mm; the serration density I measured is around 6/mm; Scale bar is 4mm. [Tooth 2] The tooth was found in Hell Creek deposits in Powder River County, Montana. Its total height [?] is around 4mm; Since there was no exact scale reference I couldn't edit in a scale bar. Thanks for any help with this!
  2. Hi sometime later this year I will be going out West in Alberta, B.C and Saskatchewan. And I will be going down to Montana for 2 days to collect fossils since I can’t really do that in Alberta. I am wondering would I be able to bring those fossils into Alberta and then fly with them, and take them back to Ontario? Thank you!!
  3. Odd Tyrannosaur tooth

    Hi can anyone tell me what happened, or why this Tyrannosaur tooth looks this way. It looks very odd to me Thank you! it’s from the Judith River formation of Montana, and is 1.2 cm.
  4. What is this?

    Grandson found this in an outcrop of immature sandstone in the proximal fluvial facies of the Paleocene Fort Union Formation in Park County, Montana. My current guess, based on the age of the outcrop and the depositional paleo-environment, is that it is a fossil plant, although it doesn't look much like one.
  5. Paleocene Dinosaurs

    So I was looking through some “older” papers and found this one by Rigby et al. (1987)(pdf attached). They were looking at some of the rock formations specifically members of the Hell Creek Formation. In one area, they have a lot of river deposits from before and after the K-T boundary. In one of the river deposits from the Paleocene as dated by pollen fossils, contains ungulate mammal fossils and some dinosaur teeth specifically ceratopsian and theropod teeth as far as I understood. They recognize that the dinosaur fossils could have been eroded from the bank and fallen in but the fossils aren’t weathered like they should have been and the river wasn’t the right kind that would rework sediments. I’m not sure I believe their arguments but what do you guys think? Rigby-et-al_1987_Paleocene-dinos.pdf
  6. Hi I decided to make a quick guide on how to ID Tyrannosaur teeth from the Belly River Group of Alberta, and the Judith River, Two Medicine Formations. I got this information on a study on how to ID isolated Tyrannosaur teeth from Dr. Angelica Torices. I’ll start off on saying Albertosaurus and Gorgosaurus are extremely alike not much differences in the morphology Daspletosaurus is a little bit Different, the morphology of these two Tyrannosaurs (Gorgosaurus and Daspletosaurus) are probably do to similar evolutionary history Gorgosaurus could of been Albertosaurus ancestor. Now I’ll tell you how to tell these two Tyrannosaur teeth apart (Gorgosaurus and Daspletosaurus). Gorgosaurus has two denticles (serrations) per mm where’s Daspletosaurus does not. Albertosaurus also have two denticles per mm because of Albertosaurus and Gorgosaurus evolutionary history. Also one more thing only with Albertosaurus, juvenile teeth can be different not just in there size but in there morphology too to the Adult teeth where’s Gorgosaurus and Daspletosaurus juvenile and adult teeth always have the same morphology. And thats what I’ve learned about this topic hope it helps, enjoy!!.
  7. Fort Peck Lake

    Is it legal for a person to search for fossils in and around the state parks located on Fort Peck Lake? Can a person take a boat and hunt for fossils in some of the more remote regions of the lake? It's technically the Missouri River, so as long as you don't go above the high water mark you're not trespassing as far as I know. In the book "Rise and Fall of the Dinosaurs" the author said you can find several T Rex teeth in a day just walking around the Hell Creek formation.
  8. Mosasaur tooth?

    Hello gang. I received this tooth as a gift years ago and believe the label is wrong. I believe the label reflects the location purchased (Glendive, Montana) and not the location the tooth was found. It looks to me like a Mosasaur tooth, likely from Morocco. Am I wrong?
  9. Albertosaurus tooth

    Hello!!! I have been offered this tooth. The seller says it is from Albertosaurus and comes from Montana. Without restoration, they have only used glue. What do you think? Thank you very much and sorry for the quality of the photos but the seller does not know how to make them better ...
  10. Because it was the first time for me to see some teeth from the Hell Creek Form. in Montana here in Germany at our local fair (and I am quite at the beginning with my collection of dino teeth) I purchased the following teeth. According to the seller both are from the "Hell Creek Form., Badlands, Carter County, Montana". The first tooth is labeled as "Thescelosaurus garbanii". Is this correct and how can the teeth of T. garbanii and T. neglectus be distinguished?
  11. Powell county montana

    Hi I was wondering if Powell county Montana is part of the two medicine formation I go a tooth from Powell county and it says it’s hell creek but it looks like it’s in two medicine it’s too west to be hell creek thanks. <Translated for the pre-celltext generation>: Hi, I was wondering if Powell county Montana is part of the two medicine formation? I got a tooth from Powell county and it says it’s hell creek, but it looks like it’s in two medicine: it’s too far west to be hell creek. Thanks.
  12. I try to get out dinosaur collecting twice a year and this year has been very good to me. Here are some quick field shots of SOME of my finds for this fall. I have a big prep job in front of we but I also use someone in Hill City to do some of my complicated work. Sites are in Montana and South Dakota all from the Hell Creek Formation. My Spring trip post have more specifics on the localities. My best find of the trip occurred on day 3 in Montana a complete dentary (lower jaw) with teeth of a Ceratopsian most likely Triceratops sp. The field photo show the jaw with lots of matrix around it to protect the sheath and teeth.. The jaw layed perfectly for me with teeth side up and flat so it made collecting easy. Here is an initial look at the jaw. The bone area in the middle is actually a sheath that is covering battery of teeth. Not all the teeth are covered by the sheath those in the far right are exposed and you can see the center ridge poking out, red circles. Prepping will expose them. Length 25" (65 cm) sorry did not brush it clean before the photo In addition to the one above I found two Hadrosaur jaws in SD from an Edmontosaurus. Both jaws are laying vertically, teeth side in against the wall. Typically they do not have teeth but until the prep is complete hard to say. One was from a Juvie about 20" (19 cm) and the other from a very young animal +13" (33 cm) which is pretty rare for this site. My initial view of the larger one was to expose the ascending ramus ( hinge) Here is the small jaw - preservation of the hinge area was not good but needed to collect it because of size. No teeth present.
  13. Found a crystalized fossil

    We found this in a load of gravel. I was hoping someone would be able to help identify it for us. Thank you!!
  14. Hadrosaur pubis:

    Another piece from the collection at work: All I've been told is that it was donated to us by a customer at a show in Helena, Montana. Its described as a Hadrosaur pubis. It's clearly seen some restoration work at some point, with many fractures mended together. Its in two pieces currently, which is how it was when I came on the show. One side is gently cambered, the other side is almost unnaturally flat, which is why a pubis bone makes sense to me. It was at one point called a Tyrannosaur scapula, but I'm not clear if that was actually what the donor called it before we decided it was a pubis, or if a former employee was calling it that to make it seem sexier. Photos: https://drive.google.com/folderview?id=19M6iJbx2IHUm-KxI9TwcFtnlCDGzpHcV
  15. I found this on the Yellowstone River after high water, it had washed onto an island on the river and gotten caught in an old tree that was also beached on the island. It is 22" from tip to tip and heavier than I would have expected as if it has begun mineralization. The base of the horn cones are 3 1/8" at their largest dimension. Could this be a Bison Antiquus? Any insight would be greatly appreciated.
  16. Cretaceous finds

    Found these in Montana, cretaceous material. Found chunks of triceratops frill, turtle shell chunks, and a few raptor teeth. Looking to ID these: Maybe a turtle limb? (it was near a shell) And the larger one I want to think is a toe but it isn't quite right, so don't let me confuse you. The last two pics are the same bone as the first two pics.
  17. Found while digging in the badlands of Montana in Glendive, in the very corner of the Hell Creek formation we found this single flat piece. At first I only noticed the one hole in the front, but upon closer inspection I discovered a partial second hole above the first, and one side has a structure visible inside the bone. Just wondering if anyone has any clue what it could be! Thanks for any input in advance.
  18. Bone ID - very specific shape

    Another find in Glendive, MT. This piece was found along with other shattered pieces of bone and we jacketed them together. I am slowly working to reconstruct, and this is the biggest whole piece I have. The shape is so specific, I am curious as to if anyone knows at least where in the body this bone was (arm, leg rib, ect) I'd appreciate it! And if you know even more, all the better! Thanks for looking
  19. Damaged bone or horn core?

    Good afternoon! I am a beginner collector and last summer I went on my first dig in Glendive, MT. I don't know the age of the rock we were digging in, but we found some fragments to cast and this piece was found under all those as we dug them out, so it was kind of by itself. We did a very quick search around the area and didn't find anything else. I notice this piece is kind of conical, but I didn't know if that shape was due to damage or if it was a horn. It's in real rough shape, very crumbly, and there is still some plaster on it you can see in a couple pictures (as well as super glue from a bad repair I attempted). There is definitely some marrow on the inside but the outside is badly split. Some groves present Any info or guesses is appreciated. Someday I hope to be as knowledgeable as you all!
  20. Hadrosaur Humerus Repair/Prep

    I recently got this lovely mess of bone, which is a mostly complete hadrosaur right humerus that only requires some assembling. I actually bought this with the idea that it might be a fun project. But then it broke even more in the shipping. So I have my work cut out for me. It's from Judith River formation, Montana. It's hard to tell at the moment, but it seems to be a rather slender humerus. So that would make it more likely to be from the saurolophinae subfamily. But I will look into that some more when I have it assembled. So I will be doing lots of reassembling on this piece as well as prepping away some excess matrix that's still present. Besides the obvious problems, the bone itself is actually in very nice condition with some really smooth cortical bone as well as some lovely visible muscle scars. This is how it looked when I first opened it. Quite a mess. Also a drawing of what it should look like in context. And here I have slightly ordered the pieces. There's 5 big main pieces, three medium pieces and a whole bunch of tiny chunks. One of the bigger pieces that includes the ulnar and radial condyles. The shaft of the bone has had a pretty bad recent fracture. This is also where most of the smaller pieces come from.
  21. Why Does the U.S. Army Own So Many Fossils?

    Why Does the U.S. Army Own So Many Fossils? Turns out massive flood control projects are a great way to find dinosaurs. by Sabrina Imbler, Atlas Obscura, August 7, 2019 https://www.atlasobscura.com/articles/why-does-the-army-own-dinosaurs Yours, Paul H.
  22. These finds were reported a while back and this paper describes the finds. These two partial skeletons from Montana represent the northernmost occurrences of Stegosauria within North America ever recovered from the Morrison Formation http://app.pan.pl/article/item/app005852018.html
  23. I just wrapped up my awesome 3 week fossil hunting trip with Paleoprospectors and I'm excited to get home and share more of my finds with everyone. It was an ambitious undertaking on my part as I would be out fossil hunting in hot and dry conditions for such an extended amount of time with no parents within a thousand mile radius, that's not to say I wasn't looked after and I'd like to thank all of the staff and participants that accompanied me during this excursion. Tonight I'll share with you the pictures and stories from the last three days of my time in Montana. Wednesday involved a lot of hiking and not a lot of production in terms of fossil finds, my best finds included a shred of theropod tooth, a small fragment of theropod bone and some petrified wood pictured below- Here's a view of small portion of the area we were hunting My group decided to call it a day early as it was 105 degrees Fahrenheit in the valley at one point making hiking nearly unbearable.
  24. Hey everyone, I've entered the final week of my awesome 3 week excursion with PaleoProspectors! We finish in Northern Montana in the Judith River formation. Monday we started at microsite which was easily accessed and a location I had some success two years prior- in 2017 I found a Troodon tooth here among other nice fossils. It became readily apparent that this location was going to give us another productive day. Although I found no complete theropod teeth early on, I did find a number of partials and fragments, along with spit teeth and some crocodilian fossils. The beautiful view from where we parked. Piece of crocodilian osteoderm Some spit teeth, most likely hadrosaur. The tip of a tyrannosaurid tooth A view from the microsite And now for my big find of the day! A huge tyrannosaurid tooth. I was so excited that I had to prep it out that night and I was happy with how it came out. oh yeah I also found a lil croc tooth after this. Some more views of the site and who I'm collecting with
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