.63" Fossil Shark (Xenacanthus) Tooth - Texas

This is a .63" wide tooth of the shark genus Xenacanthus, collected from the Early Permian, Wolfcampian Series (280 - 299 Million Years Ago) of Texas.

Xenacanthus is a genus of extinct freshwater shark that lived between the Devonian and Triassic periods. Their distinguishing features include v shaped teeth, a ribbon-like dorsal fin and a large spine that protruded from the back of their head. It has been speculated that the spine had venomous properties, similar to that of a stingray spine. Fossil records indicate that their maximum length was around 4 feet. Due to the shark being primarily cartilage, most fossils of this shark are isolated teeth and spines, however some locations feature soft body preservation.
FOR SALE
$10
DETAILS
SPECIES
Xenacanthus sp.
LOCATION
Texas
SIZE
.63" longest measurment
ITEM
#136340
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