Arizonasaurus
Arizonasaurus was a ctenosauriscid archosaur from the Middle Triassic (243 million years ago). 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 elongated neural spines of the vertebrae. The type species, Arizonasaurus babbitti, was named by Samuel Paul Welles in 1947.
| Arizonasaurus | |
|---|---|
| Model, Museum am Löwentor, Stuttgart | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Archosauria |
| Clade: | Pseudosuchia |
| Clade: | Paracrocodylomorpha |
| Superfamily: | †Poposauroidea |
| Family: | †Ctenosauriscidae |
| Genus: | †Arizonasaurus Welles, 1947 |
| Species | |
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