HotSauceCommittee Posted June 12, 2021 Share Posted June 12, 2021 Hi all! I picked up this little beauty (14mm at its longest) last week at the North Sulphur River. Unfortunately, it’s not complete, but I like it anyway. I immediately assumed it was Mosasaur (I have been a regular hunter at that location for a few years), but now I am second guessing myself. Can someone confirm or refute? Apologies in advance if there are any issues with the photos; I am posting directly from my phone, so hopefully they are not too large, but good enough quality. 2 [ . . .] to a naturalist who is reading in the face of the rocks the annals of a former world, the mossy covering which obstructs his view, and renders indistinguishable the different species of stone, is no less than a serious subject of regret. - James Hutton Link to comment Share on other sites More sharing options...
ThePhysicist Posted June 12, 2021 Share Posted June 12, 2021 (edited) Whoa. What you've got there is a very rare mosasaur tooth from NSR, a Globidens sp. These were mosasaurs with "crushing" teeth well-suited for eating armored food like ammonites and baculites. Note that the enamel texture differs from that of the other mosasaurs in the Ozan - it's beaded, especially near the tip. Its stout and bulbous shape is also different. It may be a posterior. Compare to other Globidens found in NE TX: ^ from http://northtexasfossils.com/reptilia2.htm Edited June 12, 2021 by ThePhysicist 3 1 "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
HotSauceCommittee Posted June 12, 2021 Author Share Posted June 12, 2021 (edited) 39 minutes ago, ThePhysicist said: Whoa. What you've got there is a very rare mosasaur tooth from NSR, a Globidens sp. These were mosasaurs with "crushing" teeth well-suited for eating armored food like ammonites and baculites. Note that the enamel texture differs from that of the other mosasaurs in the Ozan - it's beaded, especially near the tip. Its stout and bulbous shape is also different. It may be a posterior. Compare to other Globidens found in NE TX: Thank you for the reply! Funny enough, I'm (moderately) familiar with Globidens but haven't thought of them in so long it never once occurred to me. I typically have such terrible luck with finding teeth of any kind that I don't think about them much (inverts, on the other hand, seem to be disproportionately attracted to me, lol). The beading you mentioned near the tip is actually what made me second-guess myself. I've had Globidens on my wish list for a while now, so this made my day! Edited June 12, 2021 by HotSauceCommittee typo [ . . .] to a naturalist who is reading in the face of the rocks the annals of a former world, the mossy covering which obstructs his view, and renders indistinguishable the different species of stone, is no less than a serious subject of regret. - James Hutton Link to comment Share on other sites More sharing options...
PrehistoricWonders Posted June 12, 2021 Share Posted June 12, 2021 44 minutes ago, ThePhysicist said: Whoa. What you've got there is a very rare mosasaur tooth from NSR, a Globidens sp. These were mosasaurs with "crushing" teeth well-suited for eating armored food like ammonites and baculites. Note that the enamel texture differs from that of the other mosasaurs in the Ozan - it's beaded, especially near the tip. Its stout and bulbous shape is also different. It may be a posterior. Compare to other Globidens found in NE TX: ^ from http://northtexasfossils.com/reptilia2.htm That’s what I was thinking, but I wasn’t sure they were found there. Incredibly rare find! Congrats,@HotSauceCommittee!! I’d definitely enter it in the fossil of the month contest! 1 Link to comment Share on other sites More sharing options...
old bones Posted June 12, 2021 Share Posted June 12, 2021 I agree that you should enter it in the Fossil of the Month Jessica! Julianna 1 Link to comment Share on other sites More sharing options...
HotSauceCommittee Posted June 12, 2021 Author Share Posted June 12, 2021 1 hour ago, Familyroadtrip said: That’s what I was thinking, but I wasn’t sure they were found there. Incredibly rare find! Congrats,@HotSauceCommittee!! I’d definitely enter it in the fossil of the month contest! 16 minutes ago, old bones said: I agree that you should enter it in the Fossil of the Month Jessica! Julianna Thank you both; I think I just might! 1 [ . . .] to a naturalist who is reading in the face of the rocks the annals of a former world, the mossy covering which obstructs his view, and renders indistinguishable the different species of stone, is no less than a serious subject of regret. - James Hutton Link to comment Share on other sites More sharing options...
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