Neornithes Gadow, 1893 - living birds
Neognathae Pycraft 1900
see Cohort Neognathae Pycraft, 1900
Neoaves Sibley et al. 1988
see Subcohort Neoaves Sibley et al., 1988
[Order] Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
Family Alcidae Vigors, 1825 - auks
Genus Alca Linnaeus, 1758 [monotypic]
Alca torda Linnaeus, 1758 - razorbill
Alca torda torda Linnaeus, 1758