Glyptosaurinae Marsh, 1872

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 : 117

Glyptosaurinae Marsh, 1872

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

DEFINITION: All taxa sharing a more recent common ancestor with Glyptosaurus sylvestris than with Anguis fragilis , Diploglossus millepunctatus , or Gerrhonotus liocephalus .

DIAGNOSIS: Glyptosaurinae is diagnosed by 10(1) presence of dermal sculpturing on the frontal and parietal, 82(0) presence of a transverse posterior margin of the parietal between the supratemporal processes, and 212(6) squared dorsal tooth margins.

COMMENTS: Gauthier (1982) and Conrad (2006b) provided the only prior cladistic analyses of glyptosaurine relationships with other anguid groups, but both of those analyses used composite codings for said groups. Based on preliminary phylogenetic analyses (including those reported in Conrad, 2004b, 2005a), Peltosaurus granulosus and Glyptosaurinae were treated separately and as individual taxa. However, the current analysis reveals that P. granulosus is nested within Glyptosarinae, as suggested by earlier studies (e.g., Gilmore, 1928; Meszoely, 1970; Meszoely et al., 1978; Sullivan, 1979, 1986; Estes, 1983).