Saurolophus angustirostris, hadrosaur skull Carnataurus 9 million years ago to

9 million years ago to 11

in the marine deposits of the Edwardsville Formation

All of the land turtles found in the Oligocene deposits of the central Western Interior are described as either Stylemys

which was likely held rigid by ossified tendons

and isopods (sow bugs)

Saurolophus angustirostris, hadrosaur skull Carnataurus 9 million years ago toHadrosaur Dinosaur Skull, 29 inches long. Scientific Name: Saurolophus angustirostris Location: Mongolia Formation: Nemegt Age: Late Cretaceous, 71 Million Years Ago. Saurolophus, meaning ("lizard crest") is a genus of large saurolophine hadrosaurid dinosaur that lived about 7068. 5 million years ago, in the Late Cretaceous of North America and Asia; it is one of the few genera of dinosaurs known from multiple continents. It is distinguished by a