Priscacara liops

Priscacara liops

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Quick Overview

This specimen is a very well preserved piece, displaying excellent detail throughout its skeletal system.
Measures: ~ 4-1/2" x 6-1/2"
Location: Green River Formation, Wyoming, USA
Time Period: Eocene

More Information:

The Green River Formation in the USA covers an area over 25,000 square miles and is more than 2,000 feet thick. This formation, dates back more than 50 million years. It is one of the largest documented accumulations of sedimentary rock in the world. At the time, the area was sub-tropical and many different species flourished. Priscacara (common name perch) is a member of the Family Priscacaridae. The name Priscacara means "primitive head." Between the two Priscaara species, liops and serrata. Priscacara liops is the more common and the smaller of the two. The genus became extinct at the end of the Miocene period, and is thought to be related to the modern-day Cichildae.