Esthonyx ancylion (extinct)
Variant names:
Azygonyx ancylion
Azygonyx ancylion
Found in one sample
United States: Holly's Microsite (Late Palaeocene)
See also Esthonyx, Esthonyx acutidens, Esthonyx bisulcatus, Esthonyx grangeri, Esthonyx gunnelli, Esthonyx sp., Esthonyx spatularius