ThePhysicist Posted June 22, 2019 Share Posted June 22, 2019 Hey y'all, I went to POC for the first time yesterday and came back with some stuff I need help ID'ing. 1. Shark teeth - Cretodus crassidens? 2. Large shark tooth - Cretoxyrhina? 3. shark tooth - Scapanorhynchus? 4. Enamel/tooth frag - mosasaur? 5. shark tooth - Cretolamna appendiculata? All scale bars = 1 cm. The enamel (4) is < .5 cm in length. 4 is definitely not shark - too thick - and reminds me of crocodiles, but I haven't heard of any crocs there. I also found another mosasaur tooth frag. I know this can be really difficult, so I really appreciate your help! 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...
The Jersey Devil Posted June 23, 2019 Share Posted June 23, 2019 1 looks like Cretodus, 2 has the diagnostic features worn off but based on locality it should be ginsu (unless it is a contaminant), 3 is Scapanorhynchus, 4 is fragmentary but likely Mosasaur, 5 is a Scapanorhynchus upper lateral. 1 “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
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