Phylogenetic analysis of Hypsilurus spp. and some Australian agamid lizards belonging to the subfamily Amphibolurinae. A: Most parsimonious tree (PHYLIP/Dnapars); B: Maximum likelihood tree (PhyML). Branch length scale represents number of substitutions/site. Branch support values are given above or next to the branch. Both trees clearly show that Hypsilurus is paraphyletic and forms two distinct clades.