Captorhinida(older name:Cotylosauria) is a doublyparaphyleticgrouping of earlyreptiles.Robert L. Carroll(1988) ranked it as an order in the subclassAnapsida,composed of the following suborders:[1]
While they all share primitive features and resemble the ancestors of all modern reptiles, some of these families are more closely related to (or belong to) the cladeParareptilia,while others are further along the line leading todiapsids.For this reason, the group is only used informally, if at all, by most modern paleontologists. All members of this group are thought to be extinct.
