Notidanodon Posted March 15, 2023 Share Posted March 15, 2023 Hi guys are these teeth all Thalassotitan atrox, thanks 1. 2. 3. 1 Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted March 15, 2023 Share Posted March 15, 2023 By the looks of it, yeah 1 '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...
Notidanodon Posted March 16, 2023 Author Share Posted March 16, 2023 17 hours ago, pachy-pleuro-whatnot-odon said: By the looks of it, yeah Thanks were there no other small prognathodon species? Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted March 16, 2023 Share Posted March 16, 2023 16 minutes ago, Notidanodon said: Thanks were there no other small prognathodon species? None that have been described currently... '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...
Notidanodon Posted March 22, 2023 Author Share Posted March 22, 2023 On 3/16/2023 at 4:22 PM, pachy-pleuro-whatnot-odon said: None that have been described currently... Ah ok thanks, couldnt they be eramiasaurus? @Praefectus none of these have carinae on both sides would this make them pterygoid? Link to comment Share on other sites More sharing options...
pachy-pleuro-whatnot-odon Posted March 22, 2023 Share Posted March 22, 2023 8 minutes ago, Notidanodon said: Ah ok thanks, couldnt they be eramiasaurus? @Praefectus none of these have carinae on both sides would this make them pterygoid? If none of them have carinae on both sides this complicates matters somewhat. Anterior teeth of E. heterodontus would only have a single anterior carina, which doesn't seem to be the case here, right? All carinae appear to be posterior ones. This would indeed likely make them pterygoidal teeth. However, as far as I'm aware, palatal teeth generally already show a higher degree of lateral compression, which is the one defining characteristic that would set E. heterodontus apart from T. atrox. So, maybe not marginal T. atrox teeth any more then, but still that species for me. Just palatal teeth in that case. 1 1 '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...
Notidanodon Posted March 22, 2023 Author Share Posted March 22, 2023 7 hours ago, pachy-pleuro-whatnot-odon said: If none of them have carinae on both sides this complicates matters somewhat. Anterior teeth of E. heterodontus would only have a single anterior carina, which doesn't seem to be the case here, right? All carinae appear to be posterior ones. This would indeed likely make them pterygoidal teeth. However, as far as I'm aware, palatal teeth generally already show a higher degree of lateral compression, which is the one defining characteristic that would set E. heterodontus apart from T. atrox. So, maybe not marginal T. atrox teeth any more then, but still that species for me. Just palatal teeth in that case. Yeah just to confirm this is the anterior view 2 Link to comment Share on other sites More sharing options...
Praefectus Posted March 24, 2023 Share Posted March 24, 2023 Ugh, I'm moving fossils between locations and I just packed up a perfect example of a T. atrox anterior tooth that could be used for comparison. Give me 10 min to unwrap it. Link to comment Share on other sites More sharing options...
Praefectus Posted March 24, 2023 Share Posted March 24, 2023 The first tooth looks to be Eremiasaurus heterodontus. The other two I am not so sure about. They are bulkier and may be from either (Eremiasaurus, Thalassotitan). All the teeth are pterygoid teeth. For comparison of anterior crowns of Eremiasaurus heterodontus and Thalassotitan atrox: Eremiasaurus heterodontus Thalassotitan atrox (note the thickness and laterally oriented posterior carina) 1 2 Link to comment Share on other sites More sharing options...
Notidanodon Posted March 25, 2023 Author Share Posted March 25, 2023 On 3/24/2023 at 11:54 AM, Praefectus said: The first tooth looks to be Eremiasaurus heterodontus. The other two I am not so sure about. They are bulkier and may be from either (Eremiasaurus, Thalassotitan). All the teeth are pterygoid teeth. For comparison of anterior crowns of Eremiasaurus heterodontus and Thalassotitan atrox: Eremiasaurus heterodontus Thalassotitan atrox (note the thickness and laterally oriented posterior carina) Nice teeth! yes ok thanks that info makes sense now I think I’m getting an idea for how to identify them. Thanks again! 1 Link to comment Share on other sites More sharing options...
HunterLacrosse Posted February 16 Share Posted February 16 On 3/24/2023 at 10:54 PM, Praefectus said: The first tooth looks to be Eremiasaurus heterodontus. The other two I am not so sure about. They are bulkier and may be from either (Eremiasaurus, Thalassotitan). All the teeth are pterygoid teeth. For comparison of anterior crowns of Eremiasaurus heterodontus and Thalassotitan atrox: Eremiasaurus heterodontus Thalassotitan atrox (note the thickness and laterally oriented posterior carina) so niiice tooth!! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now