Protostrigidae
Protostrigidae is a prehistoric family of owls which occurred in North America, Europe, and Asia in the Eocene and early Oligocene periods. Genera include Eostrix, Minerva, Oligostrix,
and Primoptynx
In 1983, Cécile Mourer-Chauviré demonstrated that Protostrix is a junior sunonym of Minerva.
Protostrigidae characteristics include strong first and second toes as well as a widened medial condyle of the tibiotarsus.
