Middle Miocene

Round Mountain Silt, Sharktooth Hill Bonebed

Ernst Ranch, Bakersfield, Kern County, CA, USA

2-1/8 inch tooth

code: M16

Shark, Lamnidae.

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

This tooth appears to be a third upper anterior.