A phylogeny and revised classification of Squamata, including 4161 species of lizards and snakes Pyron, R. ; Burbrink, Frank T. ; Wiens, John J. Abstract Publication: BMC Ecology and Evolution Pub Date: 2013 DOI: 10.1186/1471-2148-13-93 Bibcode: 2013BMCEE..13...93P