Arizonasaurus

Arizonasaurus was a ctenosauriscid archosaur from the Middle Triassic (243 million years ago).[1] Arizonasaurus is found in the Middle Triassic Moenkopi Formation of northern Arizona. A fairly complete skeleton was found in 2002 by Sterling Nesbitt. The taxon has a large sailback formed by elongate neural spines of the vertebrae. The type species, Arizonasaurus babbitti, was named by Samuel Paul Welles in 1947.
Category:Animals
Category:Creatures
Category:Ctenosauriscids
Category:Taxa named by Samuel Paul Welles
Category:Fossil taxa described in 1947