Abundance: 0.32 to 2.26% (median 1.46%)

Habitats: (3) only

Found in 3 samples

United States: UMMP SC-4 (Early Eocene), UMMP SC-54 (Early Eocene), UMMP SC-67 (Early Eocene)

See also Esthonyx, Esthonyx ancylion, Esthonyx grangeri, Esthonyx gunnelli, Esthonyx sp., Esthonyx xenicus