ONTOGENETIC CHANGE IN THE TEMPORAL REGION OF THE EARLY PERMIAN PARAREPTILE DELORHYNCHUS CIFELLII AND THE IMPLICATIONS FOR CLOSURE OF THE TEMPORAL FENESTRA IN AMNIOTES.

Ontogenetic Change in the Temporal Region of the Early Permian Parareptile Delorhynchus cifellii and the Implications for Closure of the Temporal Fenestra in Amniotes.

A juvenile specimen of Delorhynchus cifellii, collected from the Early Permian fissure-fill deposits of Richards Spur, Oklahoma, permits the first detailed study of cranial ontogeny in this parareptile.The specimen, consisting of a partially articulated skull and mandible, exhibits several features that identify it as juvenile.The dermal tuberositi

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