Description: Extinct mako shark (Isurus hastalis) narrow-form upper anterior tooth (labial view). I. hastalis teeth occur in two forms, broad-form and narrow-form (there are theories, of course). The upper anterior teeth in I. hastalis are more curved than the lowers.

Age: Miocene to Pliocene.

Found By: JoDeb DeRouin

Location Found: Peace River, near Fort Meade, FL

Current Custodian : Ed DeRouin

Identified By: Ed DeRouin

References: Fossil Sharks of the Chesapeake Bay Region, pp. 57-61. Vertebrate Fossils: A Neophyte's Guide, p. 5.

Copyright © Ed DeRouin, 1999 All rights reserved