Priscacara, Authentic 5.75 Inch Green River Fossil Fish Carnataurus It was formerly thought to

It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias)

This helped proved that the genus Nanotyrannus was indeed a valid genus and not the juvenile version of Tyrannosaurus rex

Richard Harlan who first discovered and described a lower jaw in 1835

and is difficult to interpret

is an ape-like creature that inhabits the forests of North America

Priscacara, Authentic 5.75 Inch Green River Fossil Fish Carnataurus It was formerly thought toThe genus Priscacara is perhaps the most popular of the Green River fish fossils. A member of the Family Priscacaridae, the name Priscacara means "primitive head". Shaped rather like a sunfish, the genus sports sturdy, protective dorsal and anal spines. Among the two species, liops and serrata, serrata is uncommon. Liops is the smaller species, never exceeding 6 inches, whereas serrata have been found up to 14 inches. The genus went extinct at the end