Full reference: O. C. Marsh. 1872. Notice of some new Tertiary and post-Tertiary birds. The American Journal of Science and Arts, series 3 4(19-24):256-262
Type specimen: Its type locality is Henry's Fork, which is in an Eocene terrestrial horizon in the Bridger Formation of Wyoming
Ecology: ground dwelling carnivore
Distribution: found only at Henry's Fork
Specimen images are retrieved through the ePANDDA API.
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