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Found 20 results

  1. Darwin and Wallace

    Need ID for Two Medicine Tyrannosaur teeth

    Hello all, I need some help ID'ing these two tyrannosaur teeth from the Two Medicine Formation in Montana. Does anyone know how to tell the difference between Gorgosaurus and Daspletosaurus teeth based on this size? Thanks for any help.
  2. Hello again. I saw this supposedly Daspletosaurus tooth, said to be from the Two Medicine Formation, Montana. It measures approximately 1.5 inches. If you could help me, I would appreciate it. Thanks
  3. Hello, I am waiting to here back from the seller a more specific location, so I will update when I get a county/town. But info I have thus far is this is a Hadrosaur column, tail vertebra, supposedly from the Two Medicine Formation of Montana. Is the description of it being Hadrosaur correct? I assume if Hadrosaur, it will be difficult to narrow down further given the number of different Hadrosaur species there are.It is 6 fused vertebra, and if it's Hadrosaur, it might make a nice display piece for me so I will likely go for it. I've also requested some extra photos.
  4. FF7_Yuffie

    Small ornithopod/parkosaur vert?

    Hello, this vert is from Two Medicine formation. 5 x 3.7 cm. Seller doesn't know exact species. Just small ornithopod or parkosaur. It's a nice little fossil in matrix so if it isn't croc or anything, I will add to the buy list. Thanks for the help!
  5. 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
  6. FF7_Yuffie

    A few theropod teeth

    Hello, I have my eye on a few teeth. If someone can take a look and see that they all look ok, are as described etc, that would be great? 1 - A Tyrannosaur premax from Two Medicine. 2.2 cm -- No county known, unfortunately. I know this is a tricky formation that overlaps many counties, so I may leave this one if it cn't be confirmed as being from there via preservation/colorisation. 2 - Tyrannosaur tooth from Judith River. Lewistown, Montana. 1.7cm, sold as a juvenile. The crack visible seems like just a minor bit of damage and isn't anything to worry about? It doesn't
  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. Hello, Been offered this pair of teeth from Two Medicine--they are labelled as Albertosaurus juvenile, but, unless I'm mistaken, Alberto isn't from there? Could they be juvie Daspleto/Gorgosaurus, or are they raptor teeth? I am guessing it would be difficult with these to narrow it down beyond Tyrannosaur or raptor. I've got a pic of the bases if that helps. They are very small --- black one is 8mm, white one is 1cm. Black one is I think a premax tooth. One pic shows 3 teeth--but it's the middle black and the white one on the ri
  9. Allosaurus

    Two Med.F Bone

    Is this part of a hadrosaur rib? Or is it something else? The twist in part of the bone is throwing me. TMF, MT. And if you can please describe what you are looking at and why you think it is x, I'd greatly appreciate it. Trying to learn some key characteristics to get better at identifying things on my own.
  10. Does anyone have a reference (or references) for how many and which species of crocodilians are present in the Two Medicine Formation? Was Brachychampsa present, and if so, was it the only alligatoroid in the Two Medicine to have those short, rounded teeth for crushing?
  11. I am a fan of feathered dinosaurs and I had really wanted to get a fossil from a feathered dinosaur, the fluffier the better. Anzus are already on my list but as a student i cant get one with that price tag Something like a Raptor(dromeosaur like dinosaurs) would be good,but Im open to feathered ceratopsids therizinosaurids etc Doesnt matter what fossil it is,could be bone or claw or tooth,any suggestions?
  12. Hello, two more verts I'd quite like to add to my (slowly) growing vert collection. First is a a Kem Kem Theropod Caudal Vert mentioned as possibly Carcharodontosaurus which measures 7 cm x 7.5 cm x 7cm. Many thanks again.
  13. Good evening, I have the possibility to buy these fragments of a rib of Einiosaurus. Because I am not yet that familiar with dinosaur bones: -are they really rib fragments? -is it possible to attribute these to Einiosaurus? They are said to be from the Two Medicine Formation, Montana.
  14. LordTrilobite

    Hadrosaur Humerus

    The left humerus of a juvenile hadrosaur. Found near Hamilton. The closest formation is Two Medicine formation. The deltopectoral crest seems fairly robust for such a young animal so I'm leaning towards this being Lambeosaurine instead of Saurolophine, which would make it most likely Hypacrosaurus. The shape also fits quite well with a juvenile Hypacrosaurus I have restored some small areas where there were large holes. But I have left the largest area of damage due to it being a little unclear as to how robust or slender that area would have been.
  15. CBchiefski

    Advanced Dinosaur Egg Guide

    The Advanced Dinosaur Egg Guide Please share this with those who have egg questions. When possible, technical terms were avoided or defined. Every effort has been made to ensure accuracy, but it is always important to do your own research. This guide is merely a snapshot of information taken from many scientific publications. I am not an expert on eggs, rather I just love sharing what little I have learned over the years, what science has learned over the years. For an overview on how to spot a fossilized dinosaur egg and the sizes of eggs, see the basic guide:
  16. I was interviewed about my egg research by Garret and Sabrina who have a Dinosaur focused podcast, strangely enough, called "I Know Dino" and wanted to share. Highly recommend their podcast as they provide a nice weekly recap on Dinosaurs, such as scientific news and less serious funny moments. One major point where I Know Dino stands out compared to most media is a focus on accurately reporting current research. Garret and Sabrina strive to engage with the scientific community, for example, they actually attend SVP. They have interviewed many great paleontologists including Jack Horner, Tom H
  17. Likely some have already seen this, a nice little video on coprolites, what we can learn from them and their significance. Being a post from me, the video of course covers the Two Medicine Formation, I know at least @GeschWhat will enjoy. https://www.facebook.com/scifrimacroscope/videos/986351528231150/
  18. CBchiefski

    CT scan of dinosaur eggs

    I talked about this elsewhere but so everyone has a chance to view it, here is a video showing a CT scan we (TMDC) did of a jacket with 5 eggs. The eggs are currently unknown and likely new, the main goal of the scan was to help determine if there are any embryonic remains inside. CT scans often are not ideal for showing bone so what we looked for were teeth since they tend to show up better in a scan and develop at a relatively early stage. Happy to answer any questions people may have about this. A local news story on the scan: http://www.choteauacantha.com/
  19. How an Amateur Collector Changed Paleontology Forever To those of The Fossil Forum, I wish to share with you the story of Maiasaura peeblesorum and Marion Brandvold, both good mothers. Maiasaura was discovered forty years ago in June of 1978; this is the month and year of the Maiasaura. Marion and her son, David Trexler, found fossils fascinating long before Jurassic Park popularized dinosaurs. They would often take a vehicle out and go prospecting in their backyard geologic formation known as the Two Medicine. One hot summer evening when walking back to the vehicle, Marion to
  20. Hi I recently acquired some foot bones from a dromaeosaurid. Attached please find a sideview as well as a topview of the bones. I was hoping that it is possible to: 1) identify the genus and 2) identify which foot bones I have exactly Location where the fossil has been found: North of Dupuyer, Montana, USA Geological formation: Two Medicine - approx. 70M Years old All bones have been found in the same micro-site in close proximity but not "associated". It is pretty save to assume that these come from the same animal though. Unfortunately no other bones have been foun
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