Middle Miocene

Round Mountain Silt, Sharktooth Hill Bonebed

Ernst Ranch, Bakersfield, Kern County, CA, USA

2-3-16 inch tooth.

code: M14

Shark.  Lamnidae.

This shark species was once assigned to the mako genus, Isurus, but recent studies concluded that it is actually the direct ancestor of the great white shark (C. carcharias) and should be placed in the same genus.  Isurus and Carcharodon both belong to the Family Lamnidae.

This tooth appears to be a first upper lateral.