Ischyromyidae (rodent)
Abundance: 0.51 to 1.77% (median 0.90%)
Latitudinal range: 29.6° to 43.2°Habitats: (6) only
Found in 6 samples
United States: Mark's Locality (Late Palaeocene), Whistler Squat Quarry (Middle Eocene), Elderberry Canyon Quarry (Early Eocene), Lightning Butte (Early Eocene), Someday (Early Eocene), Deadman Butte (Early Eocene)
See also Ischyromyidae indet.