Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
DELORHYNCHUS PRISCUS
Synapsida? Parareptilia?
Above: picture of a Delorhyncus Priscus maxilla fragment in lateral view. From Richards Spur (Dolese Quarry), Comanche Co. Oklahoma. Lower Permian.
Abbreviations: OPNR, oblique plane of narial rim.