Aves - Falconiformes - Falconidae
Alternative spelling: Hierofalco
Parent taxon: Falco according to J. F. Clements et al. 2017
See also Wetmore 1940 and Wetmore 1956
Sister taxa: Falco (Cerchneis), Falco (Rhynchodon), Falco alopex, Falco altaicus, Falco amurensis, Falco ardosiaceus, Falco bakalovi, Falco berigora, Falco biarmicus, Falco cenchroides, Falco cherrug, Falco columbarius, Falco concolor, Falco cuvierii, Falco deiroleucus, Falco duboisi, Falco eleonorae, Falco falconellus, Falco fasciinucha, Falco femoralis, Falco fuscocaerulescens, Falco hypoleucos, Falco jugger, Falco longipennis, Falco medius, Falco melanaetus, Falco mexicanus, Falco naumanni, Falco newtoni, Falco novaeseelandiae, Falco oregonus, Falco peregrinus, Falco punctatus, Falco readi, Falco rufigularis, Falco rupicoloides, Falco rusticolus, Falco severus, Falco sparverius, Falco subbuteo, Falco subniger, Falco tinnunculus, Falco vespertinus
Subtaxa: Falco (Hierofalco) swarthi
Distribution:
• Quaternary of United States (2: California, New Mexico collections)
Total: 2 collections each including a single occurrence