Dibamidae Boulenger, 1884

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 : 106

Dibamidae Boulenger, 1884

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

DEFINITION: Anelytropsis papillosus , Dibamus novaeguineae , and all descendants of their last common ancestor.

DIAGNOSIS: Dibamus and Anelytropsis papillosus form a clade diagnosed by 12(2) mediolateral breadth of the premaxillary nasal process less than the dorsoventral depth, 32(2) palatine flange expanded posteromedially beyond the posterolateral process of the maxilla, 33(1) maxillary tooth row terminates at the level of the anterior border of the orbit, 146(2) prootic alone houses the external posterior opening of the Vidian canal, 188(2) splenial present, but fused to the postdentary bones, and 234(0) absence of oblique vertebral condyles.

COMMENTS: Only one of about 20 named species of Dibamus ( Uetz, 2007) was included in this analysis ( D. novaeguineae ). More species, possibly one including more plesiomorphic features (e.g., D. bourreti ; see Iordansky, 1985), will be included in the future. However, available material and descriptions suggests that Anelytropsis papillosus retains more plesiomorphic features than any observed Dibamus .