''Eocypselus'' is an genus of prehistoric birds believed to be ancestral to modern

hummingbird Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics ar ...

s and

swift Swift or SWIFT most commonly refers to: * SWIFT, an international organization facilitating transactions between banks ** SWIFT code * Swift (programming language) * Swift (bird), a family of birds It may also refer to: Organizations * SWIFT ...

s.Mayr, G. (2010)
Reappraisal of ''Eocypselus'' – a stem group representative of apodiform birds from the early Eocene of Northern Europe
Palaeobiodiversity and Palaeoenvironments, 90: 395-403.

Species

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Eocypselus rowei ''Eocypselus rowei'' is an extinct bird believed to be ancestral to modern hummingbirds and swifts. It was a small bird, less than in length, and probably had black feathers. The bird was first described in 2013 and lived approximately 50 mil ...

'' Ksepka ''et al.'', 2013 *''

Eocypselus vincenti ''Eocypselus'' is an genus of prehistoric birds believed to be ancestral to modern hummingbirds and swifts.Mayr, G. (2010)Reappraisal of ''Eocypselus'' – a stem group representative of apodiform birds from the early Eocene of Northern Europe Pa ...

'' Harrison, 1984

References

{{Taxonbar, from=Q21078744 Apodiformes Prehistoric bird genera