Aves - Charadriiformes - Alcoidae
Parent taxon: Alcoidae according to O. P. Hay 1930
See also Brodkorb 1955, Carroll 1988, Chandler 1990, Clements et al. 2017, del Hoyo et al. 2014, Dyke and Walker 2005, Guthrie 1992, Hay 1902, Howard 1968, Howard 1978, Howard 1982, Howard and Barnes 1987, Lambrecht 1933, Livezey and Zusi 2007, Martin et al. 2000, Mayr 2005, Mayr 2022, Miller and Bowman 1958, Miller and Howard 1949, Mlikovsky 1987, Olson 1981, Olson 1985, Olson and Rasmussen 2001, Smith 2011, Smith 2014, Smith and Clarke 2011, Smith and Mayr 2013, Smith et al. 2007, Watanabe et al. 2016, Wetmore 1956, Wetmore 1960 and Wijnker and Olson 2009
Sister taxa: none
Subtaxa: Aethiinae Alca Alcinae Cepphus Fratercula Fraterculinae Mancallinae Miocepphus Nautilornithinae Petralcinae
Ecology: ground dwelling carnivore