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Cretoxyrhina?

Fullux

By Fullux
in Fossil ID

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Fullux Regular Member

Fullux

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These came from a Cretaceous site in Mississippi. One looks like it could be Scapanorhynchus and the other looks like Cretoxyrhina, am I correct?

s-l1600 (14).jpg

s-l1600 (13).jpg

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ThePhysicist Regular Member

ThePhysicist

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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.

Forever a student of Nature

 

image.png.b91ce67f2541747809ca9464ef3e0fa6.png image.png.91f16f76669e71e2b39cff25bd672bde.png image.png.d9d37e4f54d24fd75a9c495d6f024bb8.png

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