Abundance: 4.53 to 11.11%

Latitudinal range: 40.9° to 42.7°

Habitats: (2) only

Found in two samples

United States: Observation Quarry (Middle Miocene), Martin Canyon Quarry A (Early Miocene)

See also Plesiosorex coloradensis, Plesiosorex greeni, Plesiosorex sp.