†Lithophis Marsh 1871 (boa)
Vertebrata - Ophidia - Boidae
Full reference: O. C. Marsh. 1871. Description of some new fossil serpents, from the Tertiary deposits of Wyoming. The American Journal of Science and Arts, series 3 1(5):322-329
Parent taxon: Boidae according to R. L. Carroll 1988
Sister taxa: Boinae, Cadurcoboa, Cheilophis, Daunophis, Dawsonophis, Hechtophis, Neurodromicus, Palaeopython, Paleryx, Plesiotortrix, Totlandophis, Eryx, Bransateryx, Albaneryx, Huberophis, Pterygoboa, Cadurceryx, Gaimanophis, Charina, Lichanura, Geringophis, Tregophis, Calamagras, Ogmophis, Gongylophis
Subtaxa: Lithophis sargenti
Type: Lithophis sargenti
Ecology: fossorial carnivore