PaleoDB taxon number: 134345
Full reference: S. L. Olson. 1994. A giant Presbyornis (Aves: Anseriformes) and other birds from the Paleocene Aquia Formation of Maryland and Virginia. Proceedings of the Biological Society of Washington 107(3):429-435
Type specimen: USNM 29416, a limb element (left humerus). Its type locality is Liverpool Point, which is in a Paleocene marine horizon in the Aquia Formation of Maryland.
Ecology: volant herbivore