Abundance: 0.03 to 3.11% (median 0.59%)

Latitudinal range: 33.7° to 40.4°

Habitats: (9) only

Found in 9 samples

United States: Bluegrass (macro) (Holocene), Bluegrass (micro) (Holocene), Mykut Rockshelter (Holocene), Pacific City (Late Pleistocene), Prairie Creek (Zone D) (Late Pleistocene), Prairie Creek (Zone C) (Pleistocene - Holocene), Prairie Creek (Zone B) (Holocene), Smith Creek Canyon (Reddish-brown Silt) (Late Pleistocene), WaKeeney (UM-K6-59) (Late Miocene)

See also Thamnophis, Thamnophis cyrtopsis, Thamnophis elegans, Thamnophis eques, Thamnophis marcianus, Thamnophis proximus, Thamnophis sauritus, Thamnophis scalaris, Thamnophis sirtalis, Thamnophis spp., Thamnophis sumichrasti