Description

Late Cretaceous (Maastrichtian)

Kemp Clay

Commerce, Hunt County, TX, USA

Excellent 0.3 inch shark tooth

Shark.

Serratolamna is a shark genus that appeared near the end of the Cretaceous and died out in the Middle-Late Eocene..  It’s known from Texas, the eastern U,S., Europe, and northern Africa.  This species, S. serrata, lived only during the last 5 million years of the Cretaceous.