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

Location: China Age: Late Miocene

Miscellaneous

It was not a dinosaur

Articulated in matrix

Edaphosaurus had a sail-like fin that was supported by bones of the vertebral column

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