Stratigraphic chart of the lower Permian (partial)
Content updated October 16, 2005
REPTILE X OF BOLT
Microsaur? Parareptile?
Above: pictures of a Reptile X of Bolt premaxilla in lateral and dorsal view, of interest is the very slender dorsal process. From Richards Spur (Dolese Quarry) - Comanche Co. Oklahoma. Lower Permian.
Abbreviations: drp, dorsal ramus of premaxilla; mrp, maxillary ramus of premaxilla; prp, palatal ramus of premaxilla.