Pahasapasaurus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Pahasapasaurus lived during the Late Cretaceous and resided in North America.

All the Pahasapasaurus illustrations below were collected from the internet. Enjoy and explore:

Pahasapasaurus was described by the following scientific paper(s):
  • B. A. Schumacher. 2007. A new polycotylid plesiosaur (Reptilia; Sauropterygia) from the Greenhorn Limestone (Upper Cretaceous; lower upper Cenomanian), Black Hills, South Dakota. Geological Society of America Special Paper 427:133-146