Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
RICHARDS SPUR UNIDENTIFIED
PELYCOSAUR
Above: picture in ventral view of the same vertebra, of note is the sharp edged keel on the ventral surface of the centrum.
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Stratigraphic chart of the lower Permian (partial) Content updated October 16, 2005
|
RICHARDS SPUR UNIDENTIFIED PELYCOSAUR
Above: picture in ventral view of the same vertebra, of note is the sharp edged keel on the ventral surface of the centrum. |