HelodermaLanthanotusVaranusMosasauroideaVaranoids_compAmphisbaeniaDibamidaePachyrhachisHaasiophisEupodophisYurlunggurWonambiDinilysiaLeptotyphlopidaeTyphlopidaeAnomalepididaeAnomochilusUropeltidaeCylindrophisAniliusXenopeltisLoxocemusPythoninaeBoinaeErycinaeUngaliophiinaeTropidophiinaeBolyeriinaeAcrochordidaeColubroideaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Scanlon_2006a