''Resoviaornis'' is an extinct genus of

passerine A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped') which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their ...

bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...

from the Early

Oligocene The Oligocene ( ) is a geologic epoch (geology), epoch of the Paleogene Geologic time scale, Period that extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that defin ...

(28.5–29 Ma) of southern

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

. Only one species is recorded for the genus, ''Resoviaornis jamrozi''. A 2024 study affirmed it as being an early

songbird A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 5,00 ...

(suborder Passeri), with potential affinities to either the Passerides or

Corvides Corvides is a clade of birds in the order of Passeriformes. Previously referred to as the core Corvoidea,Jønsson K.A., Fabre P.-H., Kennedy J.D., Holt B.G., Borregaard M.K., Rahbek C., Fjeldså J. (2016A supermatrix phylogeny of corvoid passerin ...

References

Passeri Oligocene birds Fossil taxa described in 2013 Fossils of Poland Monotypic prehistoric bird genera {{paleo-bird-stub