Darbi Posted June 7, 2020 Share Posted June 7, 2020 How do you differ between bony fish vertebrae and shark vertebrae? What about these three vertebrae from Kiowa formation (Albian)? #1: approximately 5.5mm wide and 3mm thick. #2: approximately 5.5mm wide and 2.3mm thick. #3: approximately 4.8mm wide and 2.3mm thick. Link to comment Share on other sites More sharing options...
Troodon Posted June 7, 2020 Share Posted June 7, 2020 Topic to address your question. Yours looks like shark 2 Link to comment Share on other sites More sharing options...
Darbi Posted June 10, 2020 Author Share Posted June 10, 2020 On 6/7/2020 at 7:32 AM, Troodon said: Topic to address your question. Yours looks like shark Thank you, Troodon! I wonder if these vertebrae belongs to Meristodonoides sp. because of it's small size and Meristodonoides sp. is one of the most, if not the most, common shark species found in Kiowa fm. Link to comment Share on other sites More sharing options...
Troodon Posted June 10, 2020 Share Posted June 10, 2020 I dont know, its very possible but you really need to ask that from someone who is versed on that fauna to determine if there are other species that could fit the bill. Link to comment Share on other sites More sharing options...
Al Dente Posted June 10, 2020 Share Posted June 10, 2020 28 minutes ago, Darbi said: I wonder if these vertebrae belongs to Meristodonoides sp. because of it's small size and Meristodonoides sp. is one of the most, if not the most, common shark species found in Kiowa fm. Meristodonoides is a hybodont shark and I believe hybodonts lack vertebral centra. 1 Link to comment Share on other sites More sharing options...
Darbi Posted June 10, 2020 Author Share Posted June 10, 2020 5 hours ago, Al Dente said: Meristodonoides is a hybodont shark and I believe hybodonts lack vertebral centra. Interesting, I learned something new! I guess that discount the hybodont shark as a possible suspect. Thanks! Link to comment Share on other sites More sharing options...
Darbi Posted June 15, 2020 Author Share Posted June 15, 2020 On 6/7/2020 at 7:32 AM, Troodon said: Topic to address your question. Yours looks like shark I revisited my specimens and I think it's very much likely shark's. There's few small holes where it was filled up with matrix and there's no nubs where the arches would have broke off. Thanks! Link to comment Share on other sites More sharing options...
Troodon Posted June 15, 2020 Share Posted June 15, 2020 Link to comment Share on other sites More sharing options...
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