Dibamidae

Conrad, J. L., 2008, Phylogeny And Systematics Of Squamata (Reptilia) Based On Morphology, Bulletin of the American Museum of Natural History 2008 (310), pp. 1-182 : 105

Acontidae + Dibamidae + Amphisbaenia + Serpentes

(figs. 54C, 55C, 56B)

DIAGNOSIS: These taxa form a clade within scincophidians based on 67(1) presence of a frontal-palatine contact, 83(0) absence of a parietal nuchal fossa (interpret- ed here as a reversal), 86(0) dorsal origin of the jaw adductor musculature on the parietal, 153(1) hypoglossal and vagus foramina confluent or subdivided within a single canal, 162(1) short tympanic crest on the quadrate, 184(0) presence of a large, posterodorsal, coronoid process of the dentary, 192(1) presence of a tall, narrow, coronoid process, 198(0) absence of a posterior overlap of the coronoid by the dentary, 209(0) absence of a tubercle on the medial surface of the retro- articular process, and 321(1) absence of an external ear.