Leioheterodon Boulenger 1893 (Malagasy hognose snake)
Reptilia - Ophidia - Colubridae
Parent taxon: Colubridae according to D. A. Burney et al. 2008
Sister taxa: Chionactis, Colubrinae, Dipsadinae, Dryinoides, Hierophis, Hispanophis, Malpolon, Mionatrix, Nanus, Natricinae, Palaeomalpolon, Palaeonatrix, Paleofarancia, Paraoxybelis, Pollackophis, Pseudocemophora, Xenodontinae
Subtaxa: none
Ecology: ground dwelling carnivore