LIST OF THE RICHARDS SPUR (FORT SILL) TETRAPOD PALEOFAUNA
Stratigraphic chart of the lower Permian (partial)
Content updated April 24, 2006
RICHARDS SPUR ARAEOSCELID HUMERUS
Eureptilia
Diapsida-Araeoscelidae
Above: picture of a distal head of an araeoscelid humerus in dorsal view, showing the bridge that unites the supinator process with the ectepicondyle, forming a distinct ectepicondylar foramen, as for Araeoscelis. From Richards Spur (Dolese Quarry), Comanche Co. Oklahoma. Lower Permian.
Abbreviations: ec, ectepicondile; ecspb, ectepicondyle-supinator process bridge; en, entepicondyle; sp, supinator process.