THE SHARKS

Extinct Tiger Shark
Galeocerdo aduncus (Agassiz)

Age - Oligocene - Miocene  Commonality - Common

Galeocerdo aduncus has teeth with broad compressed crowns. The mesial side of the crown is rounded with medium to small serrations. The distal side has a distinct notch with coarse serrations. The root lobes are rounded and a shallow nutrient grove may be present if not worn away by stream action. These teeth average between 1/2 to 3/4's of an inch reaching a maximum of about 1 inch.  These teeth are very distinctive and the only confusion will be with with the other tiger shark found in NJ, Galeocerdo contortus.

 See the tiger shark comparison page

Extinct tiger shark
Galeocerdo aduncus.
 

The distal side has coarse serrations, the mesial side has medium to
fine serrations.
 

The rounded crown on the mesial side.
 

This lingual view shows the difference in the serrations.
Left - distal side Right mesial side
 

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