Rare, 1.25" Fossil Cow Shark (Hexanchus) Tooth - Bakersfield, CA

 
 
This is a rare, 1.25" long cow shark (Hexanchus andersoni) tooth from the Temblor Formation at Bakersfield, CA. The tooth has excellent preservation and is still partially embedded in the sandstone matrix.

This shark has a large, thick body, with a broad head and blunt snout. The top jaw has jagged, cusped teeth and the bottom jaw has comb-shaped teeth. It lived in shallow water and was an opportunistic predator feeding on animals along the bottom.

Sharktooth hill is located in the foothills of the Sierra Nevada Mountains near Bakersfield, California. It represents and exposure of the Temblor Formation, a middle Miocene marine deposit. 15 million years ago the sea levels were substantially higher and Central California was cover by what is known as the Temblor Sea.



There are two highly fossiliferous, bone beds in the formation that were created when fossils originally deposited at the bottom of the sea eroded out of the rocks, were concentrated by ocean currents and subsequently reburied. Because the fossils in these bone beds are reworked, only isolated teeth and bones are found in these beds.

Today the original Sharktooth hill is a National Natural Landmark but there is private property surrounding it on which there are operating fossil quarries.
DETAILS
SPECIES
Hexanchus andersoni
LOCATION
Sharktooth Hill, Bakersfield, CA
FORMATION
Temblor Formation
SIZE
Tooth 1.25" long
ITEM
#173064
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