Abundance: 0.02 to 11.21% (median 1.60%)

Latitudinal range: 18.5° to 53.1°

Habitats: (9), closed basin (1)

Found in 10 samples

Germany: Untereichen-Altenstadt 540 m (Early Miocene), Untereichen-Altenstadt 565 m (Early Miocene)

Russia: Togay (Early Miocene)

Thailand: Doi Pha Kan (Late Pleistocene)

United States: Taddlock (Holocene), McLelland (Holocene), Croley-Evans (Holocene), Watson Brake (6.4 mm fraction) (Holocene), Scovill (Holocene), Hosterman's Pit (Holocene)

See also Viperidae indet., Viperidae sp., Viperidae sp./"? Vipera (‘oriental complex’"