Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
AUTUN SEYMOURIAMORPH
Anthracosauroidea-Seymouriamorpha
Above, picture of the skull (in lateral view) of the same seymouriamorph skeleton. From Autun, France. Lower Permian.
Abbreviations: j, jugal; qj, quadratojugal; sq, squamose;