As in our study, he found that taxonomic groups cluster together in morphospace (i.e. iguanians together, teiids and varanids together).
2007, Lance D. McBrayer, Clay E. Corbin, “9: Patterns of head shape variation in lizards: morphological correlates of foraging mode”, in Stephen M. Reilly, Lance D. McBrayer, Donald B. Miles, editors, Lizard Ecology, page 293