Aves - Accipitriformes - Accipitridae

Alternative combination: Hypomorphnus enecta

Belongs to Urubitinga according to O. P. Hay 1930

See also Lambrecht 1933, Wetmore 1926, Wetmore 1940 and Wetmore 1956

Sister taxa: none

Type specimen: Its type locality is Thomson Quarry, which is in a Hemingfordian terrestrial horizon in the Sheep Creek Formation of Nebraska

Ecology: volant carnivore

Distribution: found only at Thomson Quarry

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Specimen images are retrieved through the ePANDDA API.