Phylum Chordata Bateson, 1885 - chordates
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   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
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     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
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       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
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         Order Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
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           Suborder Charadrii Huxley, 1867 - shorebirds see Order Charadriiformes Huxley, 1867
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             Family Scolopacidae Vigors, 1825 - sandpipers, snipe
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               Subfamily Calidrininae Reichenbach, 1849 see Subfamily Calidridinae
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                 Genus Calidris [Merrem], 1804
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                   Calidris acuminata (Horsfield, 1821) - sharp-tailed sandpiper
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                   Calidris alba (Pallas, 1764) - sanderling
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                   Calidris alpina (Linnaeus, 1758) - dunlin
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                   Calidris bairdii (Coues, 1861) - Baird's sandpiper
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                   Calidris canutus (Linnaeus, 1758) - red knot
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                   Calidris ferruginea (Pontoppidan, 1763) - curlew sandpiper
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                   Calidris fuscicollis (Vieillot, 1819) - white-rumped sandpiper
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                   Calidris maritima (Brünnich, 1764) - purple sandpiper
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                   Calidris mauri (Cabanis, 1857) - western sandpiper
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                   Calidris melanotos (Vieillot, 1819) - pectoral sandpiper
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                   Calidris minuta (Leisler, 1812) - little stint
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                   Calidris minutilla (Vieillot, 1819) - least sandpiper
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                   Calidris ptilocnemis (Coues, 1873) - rock sandpiper
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                   Calidris pusilla (Linnaeus, 1766) - semipalmated sandpiper
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                   Calidris ruficollis (Pallas, 1776) - rufous-necked stint
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                   Calidris subminuta (Middendorff, 1853) - long-toed stint
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                   Calidris temminckii (Leisler, 1812) - Temminck's stint
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                   Calidris tenuirostris (Horsfield, 1821) - great knot
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