 | This article relies largely or entirely on a single source .(June 2021) |
| Crosnoornis Temporal range: Early Oligocene | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Clade: | Eupasseres |
| Suborder: | Tyranni |
| Genus: | † Crosnoornis Bochenski et al., 2021 |
| Type species | |
| †Crosnoornis nargizia (Bochenski et al., 2021) | |
Crosnoornis is a genus of suboscine bird from the Early Oligocene of Poland. [1]
The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present. As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek ὀλίγος and καινός, and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period.
The Paleogene is a geologic period and system that spans 43 million years from the end of the Cretaceous Period 66 million years ago (Mya) to the beginning of the Neogene Period 23.03 Mya. It is the beginning of the Cenozoic Era of the present Phanerozoic Eon. The earlier term Tertiary Period was used to define the span of time now covered by the Paleogene Period and subsequent Neogene Period; despite no longer being recognized as a formal stratigraphic term, "Tertiary" still sometimes remains in informal use. Paleogene is often abbreviated "Pg".
A passerine is any bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes, which facilitates perching.
Barn-owls are one of the two families of owls, the other being the true owls or typical owls, Strigidae. They are medium to large owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They also differ from the Strigidae in structural details relating in particular to the sternum and feet.
The New Zealand wrens are a family (Acanthisittidae) of tiny passerines endemic to New Zealand. They were represented by seven Holocene species in four or five genera, although only two species in two genera survive today. They are understood to form a distinct lineage within the passerines, but authorities differ on their assignment to the oscines or suboscines. More recent studies suggest that they form a third, most ancient, suborder Acanthisitti and have no living close relatives at all. They are called "wrens" due to similarities in appearance and behaviour to the true wrens (Troglodytidae) but are not members of that family.
The Tyranni (suboscines) are a suborder of passerine birds that includes more than 1,000 species, the large majority of which are South American. It is named after the type genus Tyrannus.
Anseranatidae, the magpie-geese, is a biological family of waterbirds. The only living species, the magpie goose, is a resident breeder in northern Australia and in southern New Guinea.
Nothofagus, also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America and east and southeast Australia, New Zealand, New Guinea, and New Caledonia. The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America.
The sapayoa or broad-billed sapayoa is a suboscine passerine bird found Colombia, Ecuador, and Panama.
The Early Miocene is a sub-epoch of the Miocene Epoch made up of two stages: the Aquitanian and Burdigalian stages.
Yamna is an extinct passeriform bird from early Oligocene deposits of Poland. It has been concluded as a frugivore or omnivore that lived in forests and shrubs.
Cymatoceras is a wide-ranging extinct genus from the nautilitacean cephalopod family, Cymatoceratidae. They lived from the Late Jurassic to Late Oligocene, roughly from 155 to 23 Ma.
Resoviaornis is an extinct genus of passerine bird from the Early Oligocene of southern Poland. Only one species is recorded for the genus, Resoviaornis jamrozi.
Calamophylliopsis is a genus of extinct stony corals. They lived from the Early Jurassic to Late Oligocene.
Wieslochia weissi is an extinct species of passerine bird from the early Oligocene of Germany. Remains of this species have been found in a clay pit in Frauenweiler near Wiesloch, Germany. The holotype is a dissociated skeleton on two slabs. Another specimen consisting of a mandible and a cranium has been found in the same geological area. The taxonomic affinities of Wieslochia are not well understood as it shares some similarities with suboscines but it seems more primitive in other features. It was first described by Gerald Mayr and Albrecht Manegold.
Eupasserines are passerines in the clade Eupasseres. The clade contains all passerines except the New Zealand wrens (Acanthisitti), to which they are sister.
Winnicavis is a genus of passerine bird from the Early Oligocene of Poland.
Albrecht Manegold is a German ornithologist and paleontologist. He is the curator of the vertebrate collection at the State Museum of Natural History Karlsruhe. He is known for contributions to the study of early passerine evolution. He has described extinct passerines and piciformes including the fossil treecreeper Certhia rummeli and the fossil woodpecker Australopicus nelsonmandelai.
Termastherium is an extinct genus of leontiniid notoungulates that lived during the Early Oligocene of what is now Chile. Fossils of this genus have been found in the Oligocene-aged Abanico Formation of Chile.
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