Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
RICHARDS SPUR UNIDENTIFIED SKULL
Above, picture of the unidentified partial skull, in dorsal view. From Richards Spur (Fort Sill, Dolese Quarry), Comanche Co. - Oklahoma. Lower Permian.
Abbreviations: f, frontal; l. lacrimal; n, nasal; p, parietal; pf, postfrontal; pmp, posterior margin of parietal; po, postorbital?; prf, prefrontal; sf, sutural surface for frontal; spf, sutural surface for postfrontal; sst, sutural surface for supratemporal; st, supratemporal;