Doryaspis nathorsti, primitive jawless fish Protoceratops The long jaws were distinctly

The long jaws were distinctly crocodilian and had 96 teeth

endemic to North America during the Pleistocene epoch (1

Phylum: Pinophyta

Because hundreds of specimens have been found at Sihuten

Doryaspis nathorsti, primitive jawless fish Protoceratops The long jaws were distinctlyDoryaspis ("Dart Shield") (also known by its synonym, "Lyktaspis") is an extinct genus of primitive jawless fish that lived in the Devonian period. Fossils have been discovered in Spitsbergen. The animals had a canteen shaped body armor, and had large branchial plates that extended out and curved downward in a triangular shape, very similar to those of the pycnosteids. An element of the median oral plates (that would correspond to the lower lip or