Full reference: A. Wetmore. 1938. A fossil duck from the Eocene of Utah. Journal of Paleontology 12(3):280-283
Sister taxa: none
Type specimen: Princeton Department of Geology 14399, a set of limb elements (part of left wing). Its type locality is Myton Pocket, which is in an Uintan terrestrial horizon in the Uinta Formation of Utah.
Ecology: volant herbivore