Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
AUTUN SEYMOURIAMORPH
Anthracosauroidea-Seymouriamorpha
Above, picture of the skull (occiput) of the same seymouriamorph skeleton. From Autun, France. Lower Permian.
Abbreviations: t, tabular; pp, postparietal;