Strisores

The 47 Orders

Palaeognathae

Galloanserae

Mirandornithes

Columbaves

Otidimorphae

Columbimorphae

Elementaves

Opisthocomimorphae

Gruimorphae

Ardeae

Strisores

Telluraves

Afroaves

Australaves

APODIFORMES Peters, 1940 (1867)

This name has a complicated history. Priority would seem to indicate that Trochiliformes should be used as it dates back to Wagler, 1830 (as the suborder Trochili). However, modern usage is Apodiformes. For a long time, names based on Cypselus were used, but this is a junior subjective synonym of Apus, hence Apodiformes. For families, the updated name would retain the same priority as the original, which dates back to Huxley as Cypselomorphae. That's what the (1867) is about. Still, 1830 trumps 1867. In this case I think it's better to emphasize stability over priority and use Apodiformes, not Trochiliformes.

The Apodiformes are an old clade. Ksepka et al. (2013) have found a fossil Eocypselus from the Green River formation (about 48 milliion years old) from a lineage that seems to predate the swift/hummingbird split (the lineage, not necessarily the fossil).

Hemiprocnidae: Treeswifts Oberholser, 1906 (1852)

1 genus, 4 species HBW-5

Apodidae: Swifts Olphe-Galliard, 1887 (1836)

19 genera, 114 species HBW-5

The subfamilies and tribes follow HBW-5. Although they focus on the swiftlets, the available molecular studies suggest that some reorganization will be needed (see Thomassen et al., 2003, 2005; Price et al., 2004, 2005).

Based on Rheindt et al., the Glossy Swiftlet, Collocalia esculenta, has been split into 8 species: