Abundance: 0.45 to 9.71% (median 4.80%)

Latitudinal range: 44.8° to 45.1°

Habitats: (4) only

Found in 4 samples

United States: Bear Creek (Late Palaeocene), Holly's Microsite (Late Palaeocene), UMMP SC-4 (Early Eocene), UMMP SC-54 (Early Eocene)

See also Haplomylus palustris, Haplomylus simpsoni, Haplomylus speirianus