ajgus Posted November 6, 2020 Share Posted November 6, 2020 Hi! I have a couple of bones that I would love some help with. The first appears to be a metacarpal perhaps (?), about 2.5" long - of unknown origin. I received it in two pieces, with a bit of the surrounding matrix still intact. The matrix is rust-colored & grainy, almost similar to what you might find on a Spino tooth; although the fossil itself isn't colored like any spino specimen I've encountered, plus its a pretty small bone. Any thoughts on what it might be? Secondly, is a vertibra, perhaps caudal (?). Very small, roughly an inch squared. My assumption is that it is mammalian in origin. It's color is reminiscent of various bear, lion & canine examples I've worked with, but I would differ to the more knowledgable minds here. Any insight would be appreciated. Thank you in advance! Link to comment Share on other sites More sharing options...
LabRatKing Posted November 6, 2020 Share Posted November 6, 2020 Locality? Link to comment Share on other sites More sharing options...
caterpillar Posted November 6, 2020 Share Posted November 6, 2020 Croc vertebras http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
ajgus Posted November 6, 2020 Author Share Posted November 6, 2020 59 minutes ago, LabRatKing said: Locality? That would be helpful, unfortunately I don’t know. Link to comment Share on other sites More sharing options...
ajgus Posted November 6, 2020 Author Share Posted November 6, 2020 51 minutes ago, caterpillar said: Croc vertebras That was one of my early suspicions. Any idea as to the age, species? Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 6, 2020 Share Posted November 6, 2020 39 minutes ago, ajgus said: That was one of my early suspicions. Any idea as to the age, species? Hard to pin down without any locality information. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
ajgus Posted November 6, 2020 Author Share Posted November 6, 2020 33 minutes ago, Fossildude19 said: Hard to pin down without any locality information. Understandable. Link to comment Share on other sites More sharing options...
LabRatKing Posted November 6, 2020 Share Posted November 6, 2020 The small ones I’d write off as Chiplodocus or Fragmentadon or chunkasaurus, but the bone...I need to google morphology but I swear I’ve seen something similar before. Link to comment Share on other sites More sharing options...
ajgus Posted November 6, 2020 Author Share Posted November 6, 2020 6 minutes ago, LabRatKing said: The small ones I’d write off as Chiplodocus or Fragmentadon or chunkasaurus, but the bone...I need to google morphology but I swear I’ve seen something similar before. I should have been more clear, that’s my fault. They are the same bone, before & after cleaning/prep. I’d love to hear what you find, thanks! 1 Link to comment Share on other sites More sharing options...
LabRatKing Posted November 6, 2020 Share Posted November 6, 2020 7 minutes ago, ajgus said: I should have been more clear, that’s my fault. They are the same bone, before & after cleaning/prep. I’d love to hear what you find, thanks! I’ll review that on my big screen shortly- my phone has limits! Link to comment Share on other sites More sharing options...
Mahnmut Posted November 8, 2020 Share Posted November 8, 2020 Hello Ajgus, I do not think the elongate bone is a metacarpal, that is really just a "gut feeling" but in my experience metacarpals do not have this 90° twist (if you compare the ends, they are flat in different directions). makes me think femur or humerus, reptile, maybe also croc? Bet regards, J Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
PaleoNoel Posted November 8, 2020 Share Posted November 8, 2020 The croc verts are similar in color to what I've found in the Hell Creek. Link to comment Share on other sites More sharing options...
ajgus Posted November 10, 2020 Author Share Posted November 10, 2020 On 11/8/2020 at 2:56 AM, Mahnmut said: Hello Ajgus, I do not think the elongate bone is a metacarpal, that is really just a "gut feeling" but in my experience metacarpals do not have this 90° twist (if you compare the ends, they are flat in different directions). makes me think femur or humerus, reptile, maybe also croc? Bet regards, J Thanks! I believe you are correct. Just today I had someone tell me they believed it was in fact a humerus; perhaps that of a turtle. I believe this particular fossil hails from Hell Creek, so that helps narrow it down a little bit as well. Link to comment Share on other sites More sharing options...
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