britishcanuk Posted December 26, 2019 Share Posted December 26, 2019 Hi, Recently, I had the good fortune to acquire this set of Cretoxyrhina (vraconensis) teeth from the Britton Fm., Texas. I have a detailed account of it’s discovery which describes almost all of these teeth being found together in an area about 18” x18”, with a few stragglers found just outside the main pile of teeth. It’s not complete, but It looks like most of the positions are represented. Some of the larger anteriors were not recovered and I suspect at least one or two positions are missing. I have arranged these teeth into positions that look close to me, but there is no doubt that it needs to be adjusted. I am hoping someone here might know something about these early Cretoxyrhina dentitions and might be able to advise or comment on how I can make this accurate. Some other noteworthy finds recovered from the same 18” square were 2 suspected Cretoxyrhina vertebrae, 5 small Squalicorax (falcatus) teeth, a possible Archeolamna tooth, another very small unidentified cusped shark tooth, and some small fish vertebrae and bones. Thanks for looking. R~ 6 1 Link to comment Share on other sites More sharing options...
Darktooth Posted December 26, 2019 Share Posted December 26, 2019 I can't help you with the arrangement of the teeth but it is very interesting to see this set of associated teeth. Thanks for sharing this Russ! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
Anomotodon Posted December 27, 2019 Share Posted December 27, 2019 Might be able to post more detailed comments later, but both left and right lower lateral files look wrong - some are anteriors from juvenile/sub-adult Cretoxyrhina and some are Odontaspididae indet. (Eostriatolamia sp. likely, it’s Upper Albian right?). The Tooth Fairy Link to comment Share on other sites More sharing options...
britishcanuk Posted December 27, 2019 Author Share Posted December 27, 2019 17 hours ago, Anomotodon said: Might be able to post more detailed comments later, but both left and right lower lateral files look wrong - some are anteriors from juvenile/sub-adult Cretoxyrhina and some are Odontaspididae indet. (Eostriatolamia sp. likely, it’s Upper Albian right?). thanks for the comment, I would love to hear a more detailed comment if you find the time. I don’t think there are any Odontapsid teeth in this lot, but there are a couple of suspect teeth that may not belong. The lower laterals you mention look like Cretoxyrhina to me, with the broad dental bands. Ive included some photos zoomed in a bit more. Link to comment Share on other sites More sharing options...
britishcanuk Posted December 27, 2019 Author Share Posted December 27, 2019 Two teeth I believe come from other shark species, that were found with the Cretoxyrhina. Link to comment Share on other sites More sharing options...
britishcanuk Posted January 2, 2020 Author Share Posted January 2, 2020 This is where I’m at so far. It undoubtedly needs more work, but I don’t think it’s too terribly far off. Link to comment Share on other sites More sharing options...
MikaelS Posted June 9, 2020 Share Posted June 9, 2020 On 12/26/2019 at 9:44 AM, britishcanuk said: Hi, Recently, I had the good fortune to acquire this set of Cretoxyrhina (vraconensis) teeth from the Britton Fm., Texas. I have a detailed account of it’s discovery which describes almost all of these teeth being found together in an area about 18” x18”, with a few stragglers found just outside the main pile of teeth. It’s not complete, but It looks like most of the positions are represented. Some of the larger anteriors were not recovered and I suspect at least one or two positions are missing. I have arranged these teeth into positions that look close to me, but there is no doubt that it needs to be adjusted. I am hoping someone here might know something about these early Cretoxyrhina dentitions and might be able to advise or comment on how I can make this accurate. Some other noteworthy finds recovered from the same 18” square were 2 suspected Cretoxyrhina vertebrae, 5 small Squalicorax (falcatus) teeth, a possible Archeolamna tooth, another very small unidentified cusped shark tooth, and some small fish vertebrae and bones. Thanks for looking. R~ That's not a Cretoxyrhina vraconensis but most likely a Cretoxyrhina agassizensis. The latter ranges from the upper middle Cenomanian to the middle Turonian and is characterized by incomplete cutting edges on the anterior teeth of juvenile individuals. Link to comment Share on other sites More sharing options...
MikaelS Posted May 15, 2022 Share Posted May 15, 2022 On 12/27/2019 at 12:47 PM, Anomotodon said: Might be able to post more detailed comments later, but both left and right lower lateral files look wrong - some are anteriors from juvenile/sub-adult Cretoxyrhina and some are Odontaspididae indet. (Eostriatolamia sp. likely, it’s Upper Albian right?). Yes that is a mix of teeth of at least two individuals of very different size. 2 Link to comment Share on other sites More sharing options...
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