· Felis atrox by Leidy in 1853 (F. imperialis Leidy, 1873 is a synonym). However, Hemmer (1974)...
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· Felis atrox by Leidy in 1853 (F. imperialis Leidy, 1873 is a synonym). However, Hemmer (1974) and others regard it as a subspecies (Panthera leo atrox) of lion and I concur with
