Protostrix leptosteus Marsh 1871 (owl)

Aves - Strigiformes - Protostrigidae

Alternative combinations: Bubo leposteus, Bubo leptosteus

Full reference: O. C. Marsh. 1871. Notice of some new fossil mammals and birds from the Tertiary formation of the West. American Journal of Science 2(8):120-127

Belongs to Protostrix according to P. V. Rich 1982

See also Hay 1902, Lambrecht 1933, Shufeldt 1915 and Wetmore 1937

Sister taxa: Protostrix californiensis, Protostrix lydekkeri, Protostrix saurodosis

Type specimen: Yale University Peabody Museum no512, a limb element (distal end of a left tibia).

Ecology: volant carnivore

Distribution: found only at Grizzly Buttes (Eocene of Wyoming)

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Specimen images are retrieved through the ePANDDA API.

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