Centuriavis
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Centuriavis
''Centuriavis'' is an extinct genus of phasianid landfowl from the Miocene of Nebraska. Known from a well preserved and articulated skeleton preserving the skull as well as much of the vertebral column, its name stems from the fact that it remained undescribed for nearly a hundred years. It is estimated that it weighed , which would make it comparable in size with the average female greater sage grouse. ''Centuriavis'' may be related to grouse and turkeys and only a single species has been described: ''Centuriavis lioae''. History and naming The type material of ''Centuriavis'' consists of an articulated fossil preserving primarily the front of the body including the skull, pectoral girdle, wings and the vertebrae up to and including parts of the synsacrum. These remains were collected by the 1932 Skinner Expedition at the ''Machaerodus'' quarry, a locality within the Merritt Dam Member of the Ash Hollow Formation. The ''Machaerodus'' quarry is generally thought to be Clarendonia ...
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Phasianidae
The Phasianidae are a family (biology), family of heavy, ground-living birds, which includes pheasants, partridges, junglefowl, chickens, Turkey bird, turkeys, Old World quail, and peafowl. The family includes many of the most popular Game (hunting), gamebirds. The family is a large one and includes 185 species divided into 54 genera. It was formerly broken up into two subfamily (biology), subfamilies, the Phasianinae and the Perdicinae. However, this treatment is now known to be paraphyly, paraphyletic and polyphyly, polyphyletic, respectively, and more recent evidence supports breaking it up into two subfamilies: Rollulinae and Phasianinae, with the latter containing multiple Tribe (biology), tribes within two Clade, clades. The New World quail (Odontophoridae) and guineafowl (Numididae) were formerly sometimes included in this family, but are now typically placed in families of their own; conversely, grouse and turkey (bird), turkeys, formerly often treated as distinct families ...
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Ash Hollow Formation
The Ash Hollow Formation of the Ogallala Group is a geological formation found in Nebraska and South Dakota. It preserves fossils dating back to the Neogene period. It was named after Ash Hollow, Nebraska and can be seen in Ash Hollow State Historical Park. Ashfall Fossil Beds State Historical Park is within this formation. Fossil content Mammals Bats Carnivorans Eulipotyphlans Lagomorphs Rodents Ungulates Proboscideans Reptiles Birds Crocodilians Squamates Testudines Amphibians Plants See also * List of fossiliferous stratigraphic units in South Dakota * Paleontology in South Dakota * List of fossiliferous stratigraphic units in Nebraska * Paleontology in Nebraska The location of the state of Nebraska Paleontology in Nebraska refers to paleontological research occurring within or conducted by people from the U.S. state of Nebraska. Nebraska is world-famous as a source of fossils. During the early Paleozoic ... References * Neogene Unite ...
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Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ...
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Greater Sage-grouse
The greater sage-grouse (''Centrocercus urophasianus''), also known as the sagehen, is the largest grouse (a type of bird) in North America. Its range is sagebrush country in the western United States and southern Alberta and Saskatchewan, Canada. It was known as simply the sage grouse until the Gunnison sage-grouse was recognized as a separate species in 2000. The Mono Basin population of sage grouse may also be distinct. The greater sage-grouse is a permanent resident in its breeding grounds but may move short distances to lower elevations during winter. It makes use of a complex lek system in mating and nests on the ground under sagebrush or grass patches. It forages on the ground, mainly eating sagebrush but also other plants and insects. Greater sage-grouse do not have a muscular crop and are not able to digest hard seeds like other grouse. The species is in decline across its range due to habitat loss, and has been recognized as threatened or near threatened by several n ...
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Coturnicini
Coturnicini is a tribe of birds in the subfamily Phasianinae. It contains the Old World quail, snowcocks, and African spurfowl, among others. Members of this tribe have a wide range throughout Africa, Eurasia, and Australasia. This tribe contains the only members of Pavoninae native to continental Europe (''Coturnix'' and '' Alectoris''), as well as the only members of Phasianidae as a whole native to Australasia (''Coturnix'' and ''Synoicus''). This grouping was supported by a 2021 phylogenetic analysis of Galliformes, and has been accepted by the International Ornithological Congress. The tribe name is accepted by the ''Howard and Moore Complete Checklist of the Birds of the World The ''Howard and Moore Complete Checklist of the Birds of the World'' is a book by Richard Howard and Alick Moore which presents a list of the bird species of the world. It was the first single-volume world bird list to include subspecies names, ....'' Species References {{Taxonbar, from=Q1 ...
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Pavonini
Pavonini is a tribe of bird in the subfamily Phasianinae. Members of this family are primarily found in tropical Asia, along with one species in the Congo Rainforest in Africa. It contains two of the most charismatic members of the Phasianidae, the peafowl and the arguses. This grouping was supported by a 2021 phylogenetic analysis of Galliformes, and accepted by the International Ornithological Congress. The tribe name is accepted by the ''Howard and Moore Complete Checklist of the Birds of the World The ''Howard and Moore Complete Checklist of the Birds of the World'' is a book by Richard Howard and Alick Moore which presents a list of the bird species of the world. It was the first single-volume world bird list to include subspecies names, ....'' Species References {{Taxonbar, from=Q108113041 Bird tribes Pavonini Taxa named by Constantine Samuel Rafinesque ...
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Blood Pheasant
The blood pheasant (''Ithaginis cruentus''), also known as blood partridge, is the only species in genus ''Ithaginis'' of the pheasant family. It is a relatively small, short-tailed pheasant that is widespread and is fairly common in eastern Himalayas, ranging across India, Nepal, Bhutan, China, and northern Myanmar. Since the trend of the population appears to be slowly decreasing, the species has been evaluated as of least concern on the IUCN Red List in 2009. The blood pheasant was the national bird of the former Kingdom of Sikkim, and remains the state bird of Sikkim. Description The blood pheasant has the size of a small fowl, about in length with a short, convex, very strong black bill, feathered between bill and eye, and a small crest of variously coloured feathers. The colour of the plumage above is dark ash, with white shafts, the coverts of the wings various tinged with green, with broad strokes of white through the length of each feather, the feathers of the chi ...
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Arborophilinae
Rollulinae is a bird subfamily containing the jungle and wood partridges. They are the most basal member of the family Phasianidae, having diverged during the late Eocene or early Oligocene, about 30-35 million years ago. Many taxonomists formerly placed this subfamily within the Perdicinae, but more recent studies have affirmed its existence, and it is accepted by taxonomic authorities such as the International Ornithological Congress. Members of this family are mostly found in east and southeast Asia, along with a single basal genus containing two species endemic to two mountain ranges in Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and .... Species in taxonomic order This list is ordered to show presumed relationships between species. References Rollulinae B ...
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Synapomorphy
In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have evolved in their most recent common ancestor. ) In cladistics, synapomorphy implies homology. Examples of apomorphy are the presence of erect gait, fur, the evolution of three middle ear bones, and mammary glands in mammals but not in other vertebrate animals such as amphibians or reptiles, which have retained their ancestral traits of a sprawling gait and lack of fur. Thus, these derived traits are also synapomorphies of mammals in general as they are not shared by other vertebrate animals. Etymology The word —coined by German entomologist Willi Hennig—is derived from the Ancient Greek words (''sún''), meaning "with, together"; (''apó''), meaning "away from"; and (''morphḗ''), meaning "shape, form". Clade analysis T ...
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Koklass Pheasant
The koklass pheasant (''Pucrasia macrolopha'') is a species of gamebird, being closely related to progenitive grouse that lived during the Miocene. They are distantly related to pheasants and are most closely related to grouse and turkeys. Koklass are the only species in the monotypic genus ''Pucrasia''. Both the words ''koklass'' and ''pucrasia'' have been onomatopœically derived from the bird's territorial call. Koklass are boreal adapted species which separate into three distinct species groups. They are one of the few gamebirds that regularly fly uphill and are capable of sustained flights of many miles. They are monogamous with a slight tendency toward social polyandry. Both parents rear the chicks. Koklass are largely vegetarian for much of the year consuming pine nuts, pine shoots, bamboo shoots and seeds. They are highly insectivorous during the warmer months that coincide with nesting and chick-rearing. During this phase of their life cycle they live almost exclusively ...
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Panraogallus
''Panraogallus'' is an extinct genus of phasianid bird (the family that contains pheasants and their relatives) from the Late Miocene of what is now China. The holotype specimen was discovered in the Liushu Formation near the Zhuangkeji Township in Guanghe County, Gansu Province. The specimen consists of an almost complete skeleton of a young adult (perhaps a male, since it appears to have had a spur), though part of the skull and the neck vertebrae were reconstructed in plaster before the specimen was acquired by the Hezheng Paleozoological Museum. The specimen also preserves an elongated, coiled trachea (or windpipe), the oldest known bird fossil with such a structure. The specimen was made the basis of the new genus and species ''Panraogallus hezhengensis'' by the Chinese palaeontologist Zhihen Li and colleagues in 2018. The Generic name (biology), generic name is the pinyin of the Chinese characters for "coiling" and Latin for "chicken", which refers to the elongated trachea; ...
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Pheasants
Pheasants ( ) are birds of several genera within the family Phasianidae in the order Galliformes. Although they can be found all over the world in introduced (and captive) populations, the pheasant genera native range is restricted to Eurasia. The classification "pheasant" is paraphyletic, as birds referred to as pheasants are included within both the subfamilies Phasianinae and Pavoninae, and in many cases are more closely related to smaller phasianids, grouse, and turkey (formerly classified in Perdicinae, Tetraoninae, and Meleagridinae) than to other pheasants. Pheasants are characterised by strong sexual dimorphism, males being highly decorated with bright colours and adornments such as wattles. Males are usually larger than females and have longer tails. Males play no part in rearing the young. A pheasant's call or cry can be recognised due to the fact it sounds like a rusty sink or valve being turned. Pheasants eat mostly seeds, grains, roots, and berries, while in ...
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