Keichousaurus hui, marine reptile Pachycephalosaurus and fin spines

and fin spines

whorl-tooth shark---permian-

allowing great force to be transmitted to the end of the tail when it was swung

PaleoClones can supply resin castings of brain casings from over 70 animals

This replica is cast from a specimen found in Alberta

Keichousaurus hui, marine reptile Pachycephalosaurus and fin spinesKeichousaurus hui was a semi aquatic reptile from Triassic China. They are believed to have lived in a marshy environment. Due to a robust ulna, it is believed that they were able to make their way onto land. They are considered members of the Pachypleurosauridae, which also included its contemporary the Nothosauridae. The genus name, Keichousaurus, is derived from the location where it was first found in 1957, Keichou Province. Pachypleurosaurs are