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Found 265 results

  1. Milk river weird Dino vert?

    Milk river Judith river formation find - north central Montana. Looks like just over half of a large vert with large processes to me - but really no clue. Any thoughts?
  2. I recently learned that the Dinosaur Park Formation and in general the Belly River Group is in Montana! In parts of Kennedy Coulee, Milk River Badlands, is this true?
  3. A Hoploscaphites from Ron

    RJB offered an unprepped Hoploscaphites from the Pierre Shale of Montana a while ago which he was gracious enough to send to me, although he normally doesn't ship overseas. Thanks again, Ron! It arrived a couple of days ago and I could hardly wait to get down to it since I've had these on my bucket list for ages. You can see the stage he had it at in the link. Here's how it looked in my cabinet after a few hours with the stylus. It turned out that the smaller one at the front was just a partial, and since there was nothing much else except broken shell material to be found in the concretion, I decided to remove the ammonite completely from the matrix. This is the stage it has reached after roughly 10 hours of work. My abrader has unfortunately broken down and I've had to send it off for repair, so this beauty shall have to wait for a while before I can finish it off.
  4. One more milk river Montana find

    Another milk river Montana Judith river formation bone. Found with the rest of the bone, but it was all chunked and eroded out. This is the size of a large hand. Thought it looks like the end of a long bone - maybe hadrosaur because they seem to be the bigger Dino’s in that area - but it didn’t seem to fit in my search. thoughts?
  5. Judith river Montana bone?

    Found near the milk river in the Judith river formation of north central Montana. it’s just weird. Doesn’t look like bone, but it doesn’t look like petrified wood either. Had a paleontologist friend look at it and he was a bit stumped. thoughts?
  6. Hi all! I got a digital microscope for christmas and I'm finally getting around to uploading the photos I've taken on it. Here are some closeups I took of a piece of bone I found when I hunted the Cloverly formation in Montana for a morning back on my first ever trip out west in 2013. Looking back on that experience with the knowledge I have now, I can truly appreciate what a rare experience I had as I've learned that this particular formation is rare to be able to hunt on. I'll tell the whole story of how my family and I made it onto this ranch in the first place, but that's for another time. Pics from the cross section: Pics of the surface of the bone:
  7. I won't get to do much posting from the road, but since Mike opened the door showing off some of the wisconsin ordovician finds he found and helped my wife and I collect, I figured I would add a teaser from Glendive, Montana where I finally found my first ammonites in the Pierre shale south of town. This little guy was one of my favorite singles because its exposed on one side and completely encrusted with yellow selenite crystals on the other. I will take some clearer pics once we get home and get pieces cleaned up a little
  8. Hell creek Vertebra

    Hi guys, Any idea what this vertebra is? I was thinking struthimimus/ornithomimid. found hell creek formation, Powder county, Montana, USA. best wishes @Troodon @LordTrilobite
  9. One more Judith river weirdo

    One more odd one - again, Judith river formation northern Montana. Weird asymmetry that’s got me wondering. Found in the same location as a bunch of other Dino bones - almost like a washout. Crocs, meat eaters, hadrosaurs, all in the same a spot
  10. Judith River formation vert

    Found yesterday near the milk river, Judith river formation. The biggest vert we’ve found for sure. Several other fairly large verts nearby that seemed to be hadrosaur, but not sure - and still 1/2 the size. Lots and lots of meat eater bones as well. -sorry the photos are rotated
  11. Ceratopsian frill?

    I posted this a while ago, but I’ve cleaned it up and taken a different angle of the agatized inside. Montana milk river Judith formation. It seems to have the vessel grooves on one side, but is obviously very worn. Agatized heavily only the inside but even visible from the outside. the agatized portion looks super similar to another bone found in the area (fourth pic). I don’t know how the agate process works, but the one the fourth picture that sure seems like a bone has the same agate characteristics as the “frill” -or... maybe it’s a rock again- fourth picture is a different “bone” just to show the agatization
  12. Judith river vert

    A couple of verts from the milk river Judith formation. Different shapes - assuming different dinosaurs. I know they’re a bit broken up, but just curious if anyone can tell what they’re from based odd the pics alone. first four pics from one vert, last three from the other thanks!!
  13. ID Turtle Fossil Montana?

    My friend found this in Montana a couple of years ago. She thought it was an unusual roce. I think it is a fossilized turtle shell with some bones albeit very small bones. I tried my best to get decent photos.... Anyone want to weigh in on what it is? Thanks for any input.
  14. Unidentified Theropod Tooth 3

    I was going to wait until tomorrow night to post the 3rd tooth but i got around to taking some pictures and measurements now so here is Unidentified Theropod Tooth #3. Judith River Formation Hill County Montana Crown height 15 mm ( broken base ) Serration count 17 per 5 mm distal 20 per 5 mm mesial I do not see a twist in the mesial carina This tooth is more compressed than the other two teeth the first being dromaeosaurus. Saurornitholestes perhaps?? @Troodon
  15. JRF Unidentified Theropod 2

    This is the second unidentified theropod tooth i just recently received. This tooth has a broken tip and its missing most of the mesial serrations. These are the measurements i observed followed by pictures for your own assessment. TOOTH 2 JUDITH RIVER FORMATION HILL COUNTY MT Crown height 12 mm ( missing tip ) Distal serrations are 3 per mm Mesial are 4 per mm There looks like there is a twist in the mesial carina Dromaeosaurus/Tyrannosaur?? @Troodon
  16. Tyrannosaurid Tooth

    From the album Judith River fm. Fossil Finds

    Probably my best find from that trip, this is so far the largest self found theropod tooth in my collection. It either belongs to Gorgosaurus or Daspletosaurus, though it is difficult to determine. Tyrannosauridae indet. (Either Gorgosaurus, Daspletosaurus or another taxon). Judith River fm.
  17. Ornithomimid Claw

    From the album Judith River fm. Fossil Finds

    One of my favorite finds from my trip to Montana last summer, a foot claw from an ornithomimid. Probably not identifiable beyond the family level. Ornithomimdae sp. Judith River fm.
  18. Crinoid?

    Hi, these were found in limestone shale in a canyon in Western Montana. Do you think these are crinoid columns, some kind of annelid, or other? Thanks!
  19. Montana unknown

    Milk river find in Montana. Is the little one a piece of a jaw bone (an inch long)? No clue on the larger - thought they maybe the end of a long bone but there’s really not much of a broken base to it.
  20. Scapula?

    Since I got such a quick response on my dinosaur tooth that was actually a rock I figured I’d check out some other stuff I found last week. Two separate bones pictured. Montana milk river area. From my basic anatomy knowledge it sure seems to be a scapula and then Some type of appendage bone? any thoughts? And I’m pretty sure these ones aren’t rocks if they are - I’m retiring from fossil hunting
  21. Rock?

    Failed the lick test but it sure looks Symetrical and even has a canine looking wear facet. Just want to confirm it’s a rock before I chuck it into the backyard
  22. Paper reassess the previous referral of specimens to Rubeousaurus ovatu and determines it represents a new centrosaurine taxon, Stellasaurus ancellae in the Two Medicine Formation in Montana https://royalsocietypublishing.org/doi/full/10.1098/rsos.200284 Artwork by AndreyAtuchin Nasal horn
  23. "Petrified wood" at Rainbow Dam 4/26/2020

    Today I went fossil hunting near Rainbow Dam. Not expecting to find much besides the occasional broken bottle and rattle snake, I was surprised to stumble upon this cylindrical shaped piece of rock. Upon further inspection I decided that it was petrified wood. The area around rainbow dam is populated with loose shale and red sandstone. There are many exposed areas of rock here that I have yet to explore, but for the time being, I'll be focusing my attention on areas that I know have fossils. Back to the pet. wood, I haven't the slightest idea what formation it was part of, however, a helpful website provided me with the information that the fossils found in the area may have been that of the late cretaceous period. P.S. Forgive my cat in the last picture, the smell of my dinner was to much for her to resist. -DW Here's the website that provided me with my geological time frame. Cheers. -----> http://fossilspot.com/STATES/MT.HTM
  24. Milk river finds

    First time hunting Dino bones and we found a bunch of stuff along the milk river in Montana. I have no clue what any of it is, but I know it’s all awesome A little about us: one of my daughters is 10 and is the only one I’ve been able to convince to love arrowheads, shark teeth, and dinosaur bones. We love being outside. I just chose a couple since I’m new here and want to see what I can find out. Thanks in advance. (we also found a huge 4 foot piece of beautiful petrified orange wood, lots of larger bones, toe bones, agatized bones, and what look like scapula, and heads of tibia and femurs). for now, here’s what I’d love to identify
  25. Could this be a dinosaur egg?

    I know virtually nothing about dinosaur eggs so bare with me. I figured this would be a good place to go to ask about an egg that I was told was an from a dinosaur. It was found in Eastern Montana by a family member. The exact location is unknown but it was in the vicinity of Glasgow, MT. Any insight would be appreciated.
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