Arizonasaurus

phylum	Chordata	Arizonasaurus was a ctenosauriscid archosaur from the Middle Triassic (240 million years ago). The taxon has a large sailback formed by elongate neural spines of the vertebrae. For more information, visit the Wikipedia entry. Get back to Archosauromorpha
clade	Diapsida
family	Ctenosauriscidae
genus	Arizonasaurus
Temporal range	Middle Triassic

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  Bullyland 61469 Arizonasaurus