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Found 235 results

  1. My largest dinosaur tooth yet

    I just got this and it will be arriving soon, It will be my largest dinosaur tooth yet once It comes. It’s a Tyrannosaur indet for now and it’s from the Judith River Formation. Just wanted to share this. I wanted to share more information compared to my other topic.
  2. Recently recieved a nice little package of lance creek lag formation matrix for me and a close friend to look through. I personally never handled a tough hard more dry matrix like this as I'm mostly a creek digger and my friend she is a complete amateur so this will be her first time. I'm looking for any helpful tips on how to approach such matrix. It came with two wooden sticks and some strange glue made of beads that I heard u would need acetone to break down, and if that's the case what would be the proper amount to mix? Also would it be a good idea to use the wooden sticks as a digging tool to break up the matrix? And lastly what would be the best approach coming across a fragile more broken up bone? Any help to make this experience smoother will be very much appreciated as I'd love to make the fossil hunting experience especially more smoother and special for my friend.
  3. Looking to have growths id present on late cretaceous wood. The growths are the scales present on the wood. They appear to have been growing between wood layers. Wood is partly carbonized and not fully mineralized. Wood was drift wood mixed in with baculites and scaphites. Fossil taken in situ from upper part of Kevin mb of Marias Fm in Montana.
  4. A guy I bumped into several years ago came by my house about 3 months ago and dropped off a box for me. He knew I was into fossils and he said he was cleaning up his rock shop. i finally went through that box. Wow!!! Everything in the box was just pieces but at the very bottom and in one of the corners was this fantastic specimen!!! My ammo buddy told me its most likely Scaphites borealis and this is the macroconch of the species. This is quite rare! Im gunna hafta try and find out where this guy got these from. My guess is Montana, South Dakota or Wyoming? RB
  5. Planning another summer ramble across a wide swath of the US for siteseeing and fossil hunting. Going to hit some previous sites like Kemmerer and Big Cedar Ridge in Wyoming along with planned stops for a guided dino excursion at a private ranch in eastern Montana and a trilobite dig at Theisen quarry in Oklahoma. I will be zigzagging across much of Montana and Wyoming and would be interested in other suggested stops on the way if anyone has anything they are willing to share. Not looking for someones secret stash, just publicly known places the wife and I might be able to stop for an hour or two as we roll through. We will also be traveling through places like western Nebraska, Oklahoma, southern Alabama, etc. I am interested in any era, invertebrate, vertebrate, plant. Looking to expand my personal collection and maybe pick up a few pieces to trade or auction off here. I have the most flexibility while in the north, but I have been trying to see if I can detour to squeeze in at least a little Alabama carboniferous as I have seen many beautiful specimens posted and I love plant fossils. We shall see. I have the rockhounding guides for the northern states and have tagged several possibilities, I have also been combing through previous posts and searching other references online. I would love to identify an ammonite location along the way as I have never managed to collect one myself. Thanks in advance, Randy
  6. Is this Bone?

    Hi, i recently received this from a collector, it looks like bone but i'm not sure, he told me it's from the Judith River formation, Hill county, Montana. Thanks
  7. 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 Tyrannosaur teeth from other areas like T. rex’s teeth serrations. Certain Tyrannosaurs in different areas and times would/could of had unique serration morphology probably dew to there prey. I did this on multiple teeth from the Judith River Formation and Dinosaur Park Formation to strengthen my hypothesis. Any opinions on this topic would be great. I will post more on my research here on this and other topics on the Tyrannosaur/Daspletosaurus. I have been doing research on this Daspletosaurus from the Dinosaur Park Formation and it’s close relatives because it was the first dinosaur fossil I’ve ever found. I’ve liked fossils and dinosaurs since I was 2 but in 2018 I went to Alberta and found my first dinosaur fossil which was a fossil from the Dinosaur Park Formation Daspletosaurus sp. Thats why I have been researching on this topic. The serrations I found on Dinosaur Park Formation Tyrannosaur teeth. The serrations I found on Judith River Formation Tyrannosaur teeth.
  8. MONTANA, Rosebud County find but within eyesight of Garfield County. This was not found in situ but recovered at the bottom of a wash along with dozens of other fragments. The smaller piece attached below is from the same section. Size of dental battery is 9"x4". Size of smaller tooth section is 3"x2".
  9. Bison skull - Identification help

    I found this skull sticking out of the bank along the Tongue river in Ashland, Montana on the Cheyenne Indian Reservation. If anyone has any information I would love to find out more! Thanks.
  10. Moving a T-Rex

    https://www.spiegel.de/wissenschaft/t-rex-tristan-otto-dinosaurier-aus-berlin-zieht-um-a-79c202b0-2671-4abb-be0b-1fa9aec8c7ab https://de.wikipedia.org/wiki/Tristan_Otto
  11. 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!
  12. 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!!
  13. 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.
  14. 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.
  15. 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
  16. 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!!.
  17. 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.
  18. 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?
  19. 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 ...
  20. 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?
  21. 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.
  22. 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.
  23. 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!!
  24. 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
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