Fullux Posted June 16, 2023 Share Posted June 16, 2023 These came from a Cretaceous site in Mississippi. One looks like it could be Scapanorhynchus and the other looks like Cretoxyrhina, am I correct? Link to comment Share on other sites More sharing options...
ThePhysicist Posted June 16, 2023 Share Posted June 16, 2023 Both are Scapanorhynchus. Note the lingual "nutrient groove" on the left with faint basal striating, and the right has a prominent cusplet with a worn nutrient groove. "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...
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