Keichousaurus hui, marine reptile Pachycephalosaurus whorl-tooth shark---permian-

whorl-tooth shark---permian-

boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today

also known as sea lilies

and fin spines

Keichousaurus hui, marine reptile Pachycephalosaurus whorl-tooth shark---permian-Keichousaurus 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