Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
SCLEROCEPHALUS
Temnospondyli-Archegosauroidea-Actinodontidae
Above: picture of a Sclerocephalus pectoral girdle. From Odernheim-Germany. Lower Permian
Abbreviations: cl, clavicle; i, interclavicle;