Mycteriacetus bellunensis was originally named as a new species of Eurhinodelphis, E. bellunensis, by Pilleri. However, Bianucci and Landini transferred this species to Argyrocetus, creating the new combinationA. bellunensis. Lambert eventually recognized E. bellunensis as sufficiently distinct from Eurhinodelphis and Argyrocetus to warrant a new genus, Mycteriacetus.