Doryaspis nathorsti, primitive jawless fish Pteranodon Location: China Age: Late Miocene

Location: China Age: Late Miocene

292-298) suggests that though human hunting may not have been the primary cause toward the mammoth's final extinction

Weight 2 Pounds

This fine replica is of several of the armor plates called scutes

Most sharks had at least six rows of teeth

Doryaspis nathorsti, primitive jawless fish Pteranodon Location: China Age: Late MioceneDoryaspis ("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