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Reptilia - Procolophonidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|C.-C. Young 1957||Skull length and width subequal, the former being only slightly exceeds the latter. Maximum breadth of the skull lies somewhat to the middle point of the orbits, and thus much anteriorly located than that in the true Procolophon. Muzzle extremely short and pointed. Orbits considerably large with narrow and pointed posterior extension, a little behind the large triangular pineal foramen. No spike developed at the quadratojugal region. Parietal and basisphenoid considerably elongated. Otic notch apparently less developed.|