LIST OF THE RICHARDS SPUR (FORT SILL) TETRAPOD PALEOFAUNA
Stratigraphic chart of the lower Permian (partial)
Content updated January 23, 2006
ERYOPS
Temnospondyli-Eryopoidea-Eryopidae
Above: pictures of Eryops neural spine in lateral and frontal. From Ryan Sandstones, Wellington Formation, near Waurika. Jefferson Co. Oklahoma. Lower Permian.