Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
CARDIOCEPHALUS PEABODYI
Lepospondyli- Microsauria-Gymnarthridae
Above: picture of the occiput of Cardiocephalus Peabodyi, the foramen magnum is proportionally much smaller than in Cardiocephalus Sternbergi, the opistothic (preserved only in the right side) is small.
Abbreviations: bo, basioccipital; eo, exoccipital; foramen magnum; op, opisthotic; pp, postparietal; q, quadrate; t, tabular.