hondoronnie Posted February 7, 2022 Share Posted February 7, 2022 CanAnyone tell me what this may be by looking at these ?and also can anyone tell me are there certain bones that give a tail tail signs besides the skull or teeth ? 1 Link to comment Share on other sites More sharing options...
Shellseeker Posted February 7, 2022 Share Posted February 7, 2022 Hi Ronnie, I am trying to figure out how big it is.... Please get some measurements in here. I think it may be a marine mammal, but that is just speculation at this point... Especially measure the length of the ribs and the diameter of the Vertebra. Thanks, and welcome to the fossil forum... The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
ClearLake Posted February 7, 2022 Share Posted February 7, 2022 Can you tell use where these vertebrae are from and what age they might be? Thanks 1 Link to comment Share on other sites More sharing options...
Mahnmut Posted February 7, 2022 Share Posted February 7, 2022 Hi and welcome to the forum, the pieces sticking out in the first pic and similar ones visible in the last one remind me of cervical (neck- ) or caudal (tail-) ribs, the ones I know are from plesiosaurs, I do not know if Dinosaurs also had them in similar way. Nice bones anyway, and without a ruler looking big. Best Regards, J 1 1 Try to learn something about everything and everything about something Thomas Henry Huxley Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted February 7, 2022 Share Posted February 7, 2022 Welcome to the forum from France! We've got quite a number of knowledgeable members on here, so given the right information, I'm sure we can figure this once out 8 hours ago, ClearLake said: Can you tell use where these vertebrae are from and what age they might be? This, and an approximate location would indeed be very helpful in determining the type of faunal assemblage this may have come from, and thus what it may be. Seeing as this was found in Wyoming, which is known for its dinosaurs; the size of the bones (based on the table and couch as a reference) seems sizeable enough to be dinosaur; the bone in the second photograph looks like the pubis of an ornithiscian dinosaur to me (but I by no means claim to be knowledgeable on dinosaurs, so don't get your hopes up just yet), implying a terrestrial rather than marine deposit; I'd say we're looking at Cretaceous terrestrial - that is, dinosaurian - material. 1 hour ago, Mahnmut said: [T]he pieces sticking out in the first pic and similar ones visible in the last one remind me of cervical (neck- ) or caudal (tail-) ribs, the ones I know are from plesiosaurs, I do not know if Dinosaurs also had them in similar way. I agree with Jan in that the bone sticking out in the first and third photographs look liked caudal ribs (cervical ones, I believe, are usually more rounded in terrestrial animals; moreover, I think I see some attachment sites for hemal arches on the vertebrae in the first and third photographs). As far as I know, most animals with a tail have at least some of them, thus not just marine reptiles (e.g., plesiosaurs and mosasaurs), but also the mentioned marine mammals and dinosaurs (examples below are from a baleen/humpback whale and Iguanodon bernisartensis at the Museum voor Natuurwetenschappen in Brussels). If my suspicions are correct, it may be fruitful to ask @Troodon for his input... 'There's nothing like millions of years of really frustrating trial and error to give a species moral fibre and, in some cases, backbone' -- Terry Pratchett Link to comment Share on other sites More sharing options...
Troodon Posted February 7, 2022 Share Posted February 7, 2022 Can you provide information on where these were found beyond WY? Lance formation? The bones look like caudal vertebrae of a hadrosaur This is a hip bone, an ischium of a hadrosaur can you post different angles of the other two 2 1 Link to comment Share on other sites More sharing options...
Lousde Posted February 7, 2022 Share Posted February 7, 2022 Hello from France, i'm not strong with bones of your area, those are nice finds. 1 Link to comment Share on other sites More sharing options...
jpc Posted February 7, 2022 Share Posted February 7, 2022 (edited) Hi rondoronnie- Greetings for the Tate Museum in Casper. I see a lot of hadrosaur bones there. Do these all come from one site? The first photo is almost certainly hadrosaur tail bones. Can we see a shot from head on... looking at the end of the string of vertebrae? I want to see the shape of the centrum (Big round part of the vert) to be sure. In the bottom of the photo I see some ossified tendons which are common in a hadrosaur backbone series. Your second photo is a hadrosaur ischium, as troodon said. Third photo is a string of hadrosaur tailbones. And the fourth I am assuming is from the same animal.... also tailbones or from just in front of the pelvis with those short ribs. Good find. If you want, feel free to bring them by the museum if you ever get to Casper. We like to see what folks are finding and help them ID bones in three dimensions (as opposed to photos). Edited February 7, 2022 by jpc 3 Link to comment Share on other sites More sharing options...
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