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Kingdom Animalia (animals)
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Eumetazoa (metazoans)-
Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Phylum Chordata (chordates)
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Craniata (craniates)
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Subphylum Vertebrata (vertebrates)
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Superclass Gnathostomata (jawed vertebrates)
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Euteleostomi (bony vertebrates)
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Class Sarcopterygii (lobe-finned fishes and terrestrial vertebrates)
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Tetrapoda (tetrapods)
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Amniota (amniotes)
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Class Reptilia
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Class Aves (birds)
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Subclass Neognathae (neognath birds)
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Infraclass Galloanserae (geese, ducks, quails, pheasants, and relatives)
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Order Anseriformes (ducks, geese, swans, and relatives)
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Family Anatidae (ducks, geese, and swans)
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Subfamily Anatinae (ducks, teals, and relatives)
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Genus Aythya (diving ducks)-
Species Aythya affinis (lesser scaup) -
Species Aythya americana (redhead)
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Species Aythya australis (hardhead) -
Species Aythya baeri (Baer's pochard)
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Species Aythya collaris (ring-necked duck)
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Species Aythya ferina (common pochard)
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Species Aythya fuligula (tufted duck)
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Species Aythya innotata (Madagascan pochard)
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Species Aythya marila (greater scaup)
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Species Aythya novaeseelandiae (New Zealand scaup)
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Species Aythya nyroca (ferruginous duck)
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Species Aythya valisineria (canvasback)
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Confused by a class within a class or an order within an order? Please see our brief essay.
Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.
