LIST OF THE RICHARDS SPUR (FORT SILL) TETRAPOD PALEOFAUNA
Stratigraphic chart of the lower Permian (partial)
RICHARDS SPUR MYCTEROSAURUS, PROTOROTHYRIDID, ARAEOSCELID, HUMERUS
Eureptilia
Diapsida-Araeoscelidae
Above: picture of the distal head of a Mycterosaurus humerus A, a protorothyridid humerus B, an araeoscelid humerus C, in ventral view. All from Richards Spur (Dolese Quarry), Comanche Co. Oklahoma. Lower Permian.
Abbreviations: ec, ectepicondile; en, entepicondyle; sp, supinator process.