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Found 12 results

  1. Hi everyone, So today i was researching for a quality tooth, like a Daspletosaur one or an Allosaurus one. Suddendly i notice a tooth that says “Morrison Formation Allosaur/Ceratosaur “shed” tooth” It was in a Matrix, and i never seen in my life a tooth of this caliber, it was very strange. It was like the root was splitted in many pieces, giving you the sensation that the tooth was fused with the matrix. So the question are, what’s the meaning or description of the phrase “shed tooth”? Is a good piece? if you need photo a
  2. Hi everyone! As I have mentioned several times, being a 3D artist I am trying to move into the field of paleoart. Recently I have started modeling Ceratosaurus nasicornis in 3D, and I really want to make it as accurate and plausible as possible. Here is what I have got so far: a basic model done in 3ds Max. After this I am planning to take it to ZBrush and add more muscle definition, sking wrinkles, scales and other fine details. At this stage this is just the base and I would like to share it with you guys in order to receive some feedback from those who know their dinosaur anatomy. Did
  3. FossilsandScience

    Morrison Formation Theropods

    Hey everyone, How do you tell the difference between the teeth of theropods from the Morrison formation, such as Allosaurus, Torvosaurus, Marshosaurus, and/or Ceratosaurus? Any information is appreciated! Thanks!
  4. I was recently given a tooth collection a relative of mine has built up over the years and somebody on reddit said that I should come here to verify my ceratosaurus tooth, as he said it is hard to identify one. If anybody could check this out, it would be appreciated.
  5. Paper describes a large theropod from Uruguay represented by isolated teeth which resemble Ceratosaurus. I dont have access to this paper but it will be interesting to see the multvariate analysis results and be able to compare these teeth to those found in Portugal. What is interesting in the highlights is that they propose that the spinosaurid Ostafrikasaurus crassiserratus from Tanzania should be referred as a ceratosaurid theropod. Paywalled: https://www.sciencedirect.com/science/article/abs/pii/S0895981120303242
  6. Ceratosaurus is one of my favorite Jurassic theropod Dinosaurs found in the Morrison Formation. Teeth of this and other theropods are commonly sold through online Dealers, Auction Houses and at Fossil shows. Just because a site/dealer sells Jurassic material does not guarantee the are accurately identified. Variation of the teeth in the jaw also adds to the complexity. Isolated teeth from the Morrison Formation are very difficult to diagnose and all require an understanding of additional characteristics than normal, in hopes of properly identifying them. Some publications describe th
  7. Hi I’m wondering what Ceratosaurus and other horned Theropods used there horns for? I’ve heard it was display but I’ve also heard it was for pushing rivals. Is there any evidence for these? Thank you!!
  8. Hands are very important to everyone including Dinosaurs .. here are some photos of your not so ordinary ones ........both herbivore and theropod. Some pretty cool configurations.. Paper on the evolution of Theropod dinosaur Hands https://onlinelibrary.wiley.com/doi/full/10.1111/joa.12719 The evolution of the manus of early theropod dinosaurs is characterized by high inter‐ and intraspecific variation Daniel E. Barta, Sterling J. Nesbitt, Mark A. Norell First published: 08 November 2017 https://doi.org/10.1111/joa.12719 Have to th
  9. Collectors talk about the small arms of T. rex, but have you seen the arms of Carnotaurus? The entire arm was vestigial and likely useless. Right to left, weird humeri, radius-ulna, and metacarpals-phalanges. Image and tech info by João Vasco Leite Holotype skull of Utah's first big tyrannosaurid, holotype of Tetratophoneus as displayed at Brigham Young University. vs U of U's prepped skull from Utah's most perfectly complete tyrannosaurid skeleton; both Kaiparowits Fm Provided by Jim Kirkland Did you know that Cer
  10. I recently saw a ceratosaurus nascornis tooth for sale which is described as this: Very Rare 3.5 cm Kimmeridgian, Late Jurassic Ceratosaur Theropod Dinosaur Tooth from the Morrison Formation, Colorado, USA. How does it look?
  11. Some of you might remember my other thread in which I collected a group of Cretaceous marine predators. It was a process that took 3 years > http://www.thefossilforum.com/index.php?/topic/48360-predators-of-the-cretaceous-seas-teeth-set/ Now I'm ready to begin my next collection, but first I need to gather some info to see if this is even a viable endeavor. As thread title suggests, I'm going for theropods this round. The commonly seen ones like Nanotyrannus, North American Tyrannosaurs etc I'm not too worried. It's those big four in the title that has me wondering if I can even complete
  12. Is ceratosaurus dentisulcatus the biggest known of its species ? would its tooth be different from its other species tooth length,size and serrations ? is there any difference between magnicornis and nasicornis ?
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