Abundance: 0.21 to 55.32% (median 12.33%)

Latitudinal range: 29.6° to 41.1°

Habitats: (8) only

Found in 8 samples

United States: Whistler Squat Quarry (Middle Eocene), Sciuravus Surprise (Middle Eocene), Donna's Locality (Middle Eocene), Natural Science (Middle Eocene), Roll the Bones (Middle Eocene), Strathern (LACM 7895) (Middle Eocene), Simi Valley Landfill (2000s collection) (Middle Eocene), Dry Gulch Creek Member (SDSNH Locality 5939) (Middle Eocene)

See also Metanoiamys korthi, Metanoiamys lacus, Metanoiamys sp., Metanoiamys texensis