Phylum Chordata Bateson, 1885 - chordates
Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Subclass Neornithes Gadow, 1893
see Clade Neornithes Gadow, 1893
Superorder Neognathae Pycraft, 1900
see Cohort Neognathae Pycraft, 1900
Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
Suborder Charadrii Huxley, 1867 - shorebirds
see Order Charadriiformes Huxley, 1867
Family Scolopacidae Vigors, 1825 - sandpipers, snipe
Subfamily Calidrininae Reichenbach, 1849
see Subfamily Calidridinae
Genus Calidris [Merrem], 1804
Calidris ptilocnemis (Coues, 1873) - rock sandpiper