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  1. Fullux


    Hi, I got this piece of sauropod femur in February of this year as well as one more large piece, both associated and from the Morrison formation. Is there any way to differentiate fragmentary bones of sauropods from the Morrison or a way to get an identification on this individual?
  2. bcfossilcollector

    Morrison Formation dinosaur skin

    After reading the recent thread on Morrison Formation fossils, especially the reference to Suuwassea on the tables provided, I thought I’d post an image of this particular fossil from my collection. It’s an example of the carbonized dinosaur skin found in the Morrison and sometimes attributed to Suuwassea although Diplodocus sp. is probably more accurate. I think I have a few more specimens somewhere.
  3. Fullux


    Hi, these are two pieces of a femur of a Camarasaur. It was found in the bone cabin quarry in Wyoming. The first piece is 16 × 9 × 7 and the second piece is 13 × 5 × 7, measured in centimeters. The femur was found in September 2020. I just wanted a second opinion on this one as I've made poor judgement in the past.
  4. Dino Dad 81


    Hello, I came across this 1.3" tooth from the Morrison formation in Johnson county, Wyoming. Does it look like Ceratosaurus to you? I'm trying to confirm that the mesial carina extends to the base, but I think it does extend to the base (despite being worn), based on the last pic but it's hard to tell since it's out of focus. Looks pretty symmetrical and otherwise morphologically appropriate. DSDI looks to be in the 1.0 ballpark...
  5. Dino Dad 81

    Morrison osteoderm?

    Hi All, This thing comes from the Morrison formation in Crook county, Wyoming. It's about 2.25 x 1" x 3/8". Any thoughts on what it is? With the veins on both sides, I'm wondering if it's an osteoderm. Thanks!!
  6. FF7_Yuffie

    Camarasaurus vertebra

    Hello, any thoughts on this? Supposedly Camarasaurus vert. 9cm x 6.25 x 6.5 Found in Crook County, Wyoming. It apparently has some restoration. Any help appreciated as always!
  7. Hi all! I've had this tooth in my collection for a while now and I want to give a more narrow ID. It was originally sold to me as belonging to Ceratosaurus sp. and even then I knew how bold a statement that was and have had my doubts about it. My knowledge on Morrison Theropod teeth is very limited so any of your help is appreciated.
  8. FF7_Yuffie

    Allosaurus or something else

    Hi, Quite interested in this. Supposedly Allosaurus. 1/2 an inch in length. From Morrison Formation, Wyoming. Worn tip, serrations on the back but none on the front. I am wondering if it is too small to be Allosaurus. I'd appreciate any thoughts on the tooth. Thanks
  9. TeethCollector

    Morrison Megalosaurid or Allosaurid?

    I bought this tooth and the seller named this 'Allosaurus', but the serrations are more dense and the mesial carina stops far before the root. Is this a megalosaurid or allosaurid? Anyone can help? The base width/base length = 4.2mm/12.3mm Locality: Morrison formation, Wyoming Distal carina Mesial carina
  10. So my wife has a business trip coming up in Sept. I'm going with her and want stuff to do on the few days she's at the office there. End of the week we are hitting up some museum places around Morrison. I'm also thinking of hitting up the Florissant Fossil Quarry, because that's at least one place I can go and find something myself. I mean I'm certainly going to buy a few fossils on the trip because well why not. So there are a few things I'll visit without her just because I don't mind the hikes. I'd kind of like to find a few things myself and I know absolutely nothi
  11. Here is a lovely isolated theropod tooth from USA - the seller lacked all locality data, although he believed it may have been from the Morrisons formation. This lovely tooth is just over 2.5cm long and has 15 serrations per 5mm on the distal side (DC) however serrations on the mid-centre off the medial side have not been preserved. It would be lovely to ID this to some level other than theropod if possible. Serrations on the mesial side only go down 2/3rds of the tooth. There is some restoration to the tooth - if any more photos would be beneficial please let me kno
  12. Hello, can anyone take a look at these? A trio of Camptosaurus bones from the Morrison Formation, Big Horn Basin --- Not associated, but all are juvenile. They might make an interesting central display piece for my collection if they seem ok. Are they as described, and does anyone spot any repairs or restoration? First - Ischium, 13.2 inches.
  13. Dear Fossil forum members, I have recently acquired this bone. It is said to have been found at Mack, Colorado. I suppose it is from the Morrison Formation. The previous owner thought it might be a Stegosaurus neural arch, but now I have it in my hands I see more similarities with a supraoccipital. Especially these: (Eolambia, A and C) https://peerj.com/articles/1872/ (Fig. 12, A. Eotrachodon) https://www.nature.com/articles/s41598-019-41325-8 (Fig. 2, Q, R, S, T and their other sides, unknown hadosaurs) seem similar to me.
  14. Billymachi

    Allosaurus Caudal Vertebrae

    This purchase was advertised as an Allosaurus (half) vertebrae obtained from Ernest Shirley inventory. Matches well with exhibits 4,5,6 of the illustration from Charles Gilmore's 1920 report on Osteology of Carniverous Dinosauria... which is considered to be a 5th (?) caudal vertebrae of A fragilis (Antrodemus). I would appreciate any feedback on what details are present in this fossil and perhaps where this may have been collected, as no provenance was provided. There are small pits visible in the side view which may be fossae. I have seen photos of similar looking specim
  15. 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!
  16. Billymachi

    Body Armor?

    Its a solid specimen with interesting internal structure. Does not look like bone. Maybe section of horn sheath or body armor?
  17. Billymachi

    Jurassic toe claw

    Bony core present. Much of keratin sheath preserved as creamy green. Bottom has distinct flattened profile and the keratin is heavily fractured (see picture - toe2 left edge, toe3 right edge) Top profile exhibits clockwise curve. Jurassic, Morrison, Four Corners.
  18. Billymachi

    Very large seed?

    This is an un-associated surface find from Brushy Basin so no context to draw on. No discernible internal structure when looking at the fractured end. Obvious symmetry and taper to a flat point. I have not found anything seed-like on the internet that is this large or shaped quite like this. So I am excited to hear back from the forum. I am new to the Fossil Forum and look forward to sharing in the bigger brain of paleontology.
  19. FF7_Yuffie

    Allosaurus tooth

    Hello, I saw this for sale and tempted by it, but is it Allo? Seems pretty small to me. And, is it complete? The base seems crooked, so wondering if it may be half a tooth? Labelled as complete but repaired crack. From Morrison Formation. Thanks
  20. Hello there. I recently received a small theropod tooth from the Morrison Formation, without any ID. Part of the tip is missing/worn out. At its longest dimension, the tooth measures 1,1 cm. The serration count (Both mesial and dermal) are 6-7 serrations per mm, and about 18-19 per 3 mm. Anyone who's got a good guess, feel welcome to drop a comment here, cause I have no clue if this is a baby Allosaurus, or a small Marshosaurus, Ornitholestes, Coelurus or something completely different.
  21. Dino1

    Allosaurus tooth is it real?

    Hey guys, I bought this on online at an auction for reasonable price, which seemed quite cheap for an allosaurus tooth. The seller wasn’t really sure if this was an allosaurus tooth or not, it was his best guess please tell me what you think.
  22. fossil_sea_urchin

    Theropod tooth?

    Hi everyone, I just obtained my first non-Moroccan theropod tooth. It's from the Morrison formation and measures 1 and 3/8ths of an inch. I assume it is from an Allosaurus, because of how common Allosaurus is in the Morrison, but the rarer Torvosaurus and Ceratosaurus are the only other possibilities. It would be interesting to hear some opinions, however the lack of visible serrations presents some problems. @Troodon Thanks in Advance!
  23. fossil_sea_urchin

    Stegosaurus scute?

    I am aware that stegosaurus has scutes under its neck, but is this identifiable. Seller states it was associated with other scutes and the ID was done by a professional. Thanks in advance!
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