Odontocetes compose the most ecologically and taxonomically diverse clade of marine mammals. All modern odontocetes are homodont, but the early history of this group (Oligocene–Early Miocene) was domi
Paleocene deposits of the Tullock Member of the Fort Union Formation, Montana, U.S.A., have yielded several new specimens of †Polyodon tuberculata, a taxon previously described from the formation, as
