†Protostrix leptosteus Marsh 1871 (owl)
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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, Hay 1930, Lambrecht 1933, Marsh 1871, Shufeldt 1915, Wetmore 1937, Wetmore 1940 and Wetmore 1956
Sister taxa: Protostrix californiensis, 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)
Specimen images are retrieved through the ePANDDA API.
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