Class Reptilia
Order Squamata
Suborder Serpentes
Family Colubridae
The current geographic range is southeastern USA and northeastern Mexico; it extends west to central Texas.
Sites.
Late Wisconsin/Holocene: Fowlkes Cave (Parmley 1990).
Literature. Parmley 1990.
The Smooth Green Snake is widespread in the more mesic portions of New Mexico and likely occurs now in the southern Guadalupe Mountains.
Sites.
Late Wisconsin: Upper Sloth Cave (Logan and Black 1979).
Literature. Logan and Black 1979.