Shark

Shark (Isurus hastalis)

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	Collectively this family is known as the Mackerel Sharks, in allusion to the accessory stabilizing keels that are prominently developed on either side of the tail (resembling a similar structure in Mackerels). Polygon counts: Original 400,000; 30,000 before compression Time: Miocene Locality: Bakersfield, CA; Tremblor Formation Specimen: I. Hastalis P8127A
Data scanning, postprocessing, and preparation of this web page by: Jensen Jones

Collectively this family is known as the Mackerel Sharks, in allusion to the accessory stabilizing keels that are prominently developed on either side of the tail (resembling a similar structure in Mackerels).

Polygon counts: Original 400,000; 30,000 before compression
Time: Miocene
Locality: Bakersfield, CA; Tremblor Formation
Specimen: I. Hastalis P8127A