Acleistorhinidae
Acleistorhinidae is an extinct family of Late Carboniferous and Early Permian-aged (Moscovian to Kungurian stage) parareptiles. Acleistorhinids are most diverse from the Richards Spur locality of the Early Permian of Oklahoma. Richards Spur acleistorhinids include Acleistorhinus, Colobomycter, and possibly Delorhynchus and Feeserpeton. Other taxa include Carbonodraco from the Late Carboniferous of Ohio[2] and Karutia from the Early Permian of Brazil.[3] Acleistorhinidae is commonly considered a subgroup of lanthanosuchoids, related to taxa such as Chalcosaurus, Lanthaniscus and Lanthanosuchus.[4] However, a re-examination of parareptile ph...read more