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Juehuaornis
''Juehuaornis'' is an extinct genus of ornithuromorph dinosaurs from the Early Cretaceous of present-day China. It contains a single species, ''J. zhangi''. Discovery and naming The holotype, SJG 00001, was found near Lingyuan in a layer of the Jiufotang Formation dating from the Aptian. It consists of an almost complete and associated skeleton with skull, compressed on a plate. It preserves feather remains. The counterplate was designated as the paratype with inventory number SJG 00001A. In 2015 the type species ''Juehuaornis zhangi'' was named and described by Wang Ren-fe, Wang Yan and Hu Dongyu. The generic name combines a reference to the island of Juehua, the "''Chrysanthemum'' Island" off the coast of Liaoning, with a Greek ὄρνις, ''ornis'', "bird". The specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dingavis
''Dingavis'' is an extinct genus of ornithuromorph dinosaurs from the Early Cretaceous of present-day China. It contains a single species, ''D. longimaxilla''. Discovery and naming At Sihedang in Liaoning a fossil skeleton was excavated. Catalogued as IVPP V20284, it was found in a layer of the Yixian Formation dating from the Aptian. It consists of an almost complete and associated skeleton with skull, compressed on a plate. It preserves feather remains at the neck. About forty gastroliths have been preserved. It represents an adult individual. The specimen was acquired by the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing. The piece was prepared by Li Dahang. In 2015 the type species ''Dingavis longimaxilla'' was named and described by Jingmai O'Connor, Wang Min and Hu Han. The generic name combines the name of Ding Wenjiang, the "Father of Chinese Geology", with a Latin ''avis'', "bird". The specific name is derived from the Latin ''longus'', "long", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euornithes
Euornithes (from Greek ' meaning "true birds") is a natural group which includes the most recent common ancestor of all avialans closer to modern birds than to the enantiornithines. This group was defined in the ''PhyloCode'' by Juan Benito and colleagues in 2022 as "the largest clade containing '' Vultur gryphus'', but not '' Enantiornis leali'' and '' Cathayornis yandica''". Description Clarke ''et al''. (2006) found that the most primitive known euornithians (the Yanornithiformes) had a mosaic of advanced and primitive features. These species retained primitive features like gastralia and a pubic symphysis. They also showed the first fully modern pygostyles, and the type specimen of '' Yixianornis'' (IVPP 13631) preserves eight elongated rectrices (tail feathers) in a modern arrangement. No earlier pygostylians are known which preserve a fan of tail feathers of this sort; instead, they showed only paired plumes or a tuft of short feathers. Classification The name Euorn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithuromorpha
Euornithes (from Greek ' meaning "true birds") is a natural group which includes the most recent common ancestor of all avialans closer to modern birds than to the enantiornithines. This group was defined in the ''PhyloCode'' by Juan Benito and colleagues in 2022 as "the largest clade containing '' Vultur gryphus'', but not '' Enantiornis leali'' and '' Cathayornis yandica''". Description Clarke ''et al''. (2006) found that the most primitive known euornithians (the Yanornithiformes) had a mosaic of advanced and primitive features. These species retained primitive features like gastralia and a pubic symphysis. They also showed the first fully modern pygostyles, and the type specimen of ''Yixianornis'' (IVPP 13631) preserves eight elongated rectrices (tail feathers) in a modern arrangement. No earlier pygostylians are known which preserve a fan of tail feathers of this sort; instead, they showed only paired plumes or a tuft of short feathers. Classification The name Euornithes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Changzuiornis
''Changzuiornis'' is an extinct genus of ornithuromorph bird from the Early Cretaceous of present-day China. It contains a single species, ''C. ahgmi''. Discovery and naming At Sihedang near Lingyuan in Liaoning, a bird skeleton was excavated which was acquired by the ''Anhui Gushengwu Bowugan'', the paleontological museum of Anhui. In 2016 the type species ''Changzuiornis ahgmi'' was named and described by Huang Jiandong, Wang Xia, Hu Yuanchao, Liu Jia, Jennifer A. Peteya and Julia A. Clarke. The generic name combines the Chinese ''chángzuì'', "the longest", a reference to the long beak, with a Greek ὄρνις, ''ornis'', "bird". The specific name is the Latin genitive of the acronym AHGM, the Anhui Geological Museum. The holotype, AGB5840, was found in a layer of the Jiufotang Formation dating from the Aptian. It consists of an almost complete and associated skeleton with skull, compressed on a plate. It preserves feather remains and gastroliths. It represents an adult in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aptian
The Aptian is an age (geology), age in the geologic timescale or a stage (stratigraphy), stage in the stratigraphic column. It is a subdivision of the Early Cretaceous, Early or Lower Cretaceous epoch (geology), Epoch or series (stratigraphy), Series and encompasses the time from 121.4 ± 1.0 annum, Ma to 113.0 ± 1.0 Ma (million years ago), approximately. The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early Cretaceous. The Aptian partly overlaps the upper part of the Western Europe, Western European Urgonian Stage. The Selli Event, also known as OAE1a, was one of two oceanic anoxic events in the Cretaceous Period, which occurred around 120 annum, Ma and lasted approximately 1 to 1.3 million years, being marked by enhanced silicate weathering, as well as ocean acidification. The Aptian extinction was a minor extinction event hypothesized to have occurred around 116 to 117 Ma. Stratigraphic definitions The Aptian was named after the small city o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological Type (biology), type wiktionary:en:specimen, specimen (or specimens). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the International Code of Nomenclature for algae, fungi, and plants, code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name with that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous Dinosaurs Of Asia
Early may refer to: Places in the United States * Early, Iowa, a city * Early, Texas, a city * Early Branch, a stream in Missouri * Early County, Georgia * Fort Early, Georgia, an early 19th century fort Music * Early B, stage name of Jamaican dancehall and reggae deejay Earlando Arrington Neil (1957–1994) * Early James, stage name of American singer-songwriter Fredrick Mullis Jr. (born 1993) * ''Early'' (Scritti Politti album), 2005 * ''Early'' (A Certain Ratio album), 2002 * Early Records, a record label Other uses * Early (name), a list of people and fictional characters with the given name or surname * Early effect, an effect in transistor physics * Early, a synonym for ''hotter'' in stellar classification In astronomy, stellar classification is the classification of stars based on their stellar spectrum, spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a Prism (optics), prism or diffraction gratin ... See also * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet, species epithet, or epitheton) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Etymology Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liaoning
) , image_skyline = , image_alt = , image_caption = Clockwise: Mukden Palace in Shenyang, Xinghai Square in Dalian, Dalian coast, Yalu River at Dandong , image_map = Liaoning in China (+all claims hatched).svg , mapsize = 275px , map_alt = Map showing the location of Liaoning Province , map_caption = Map showing the location of Liaoning Province , coordinates = , subdivision_type = Country , subdivision_name = China , named_for = —"Liao River, Liao (River)" —"pacification" "Pacified of the Liao (River)" , seat_type = Capital , seat = Shenyang , seat1_type = , seat1 = , parts_type = Divisions , parts_style = para , p1 = 14 Prefectures of China, prefectures , p2 = 100 Counties of China, counties , p3 = 1511 Townships of China, townships , government_type = Provinces of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysanthemum
Chrysanthemums ( ), sometimes called mums or chrysanths, are flowering plants in the Asteraceae family. They are native to East Asia and northeastern Europe. Most species originate from East Asia, and the center of diversity is in China. Countless horticultural varieties and cultivars exist. Description The genus ''Chrysanthemum'' are perennial herbaceous flowering plants, sometimes subshrubs. The leaves are alternate, divided into leaflets and may be pinnatisect, lobed, or serrate (toothed) but rarely entire; they are connected to stalks with hairy bases. The compound inflorescence is an array of several flower heads, or sometimes a solitary head. The head has a base covered in layers of phyllaries. The simple row of ray florets is white, yellow, or red. The disc florets are yellow. Pollen grains are approximately 34 microns. The fruit is a ribbed achene. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lingyuan
Lingyuan () is a city in the west of Liaoning province in Northeast China, bordering Hebei province and Inner Mongolia. It is under the administration of Chaoyang City, which lies to the east-northeast. Administrative Divisions There are eight subdistricts, 11 towns A town is a type of a human settlement, generally larger than a village but smaller than a city. The criteria for distinguishing a town vary globally, often depending on factors such as population size, economic character, administrative stat ..., 10 townships, and one ethnic township under the administration of the city.= Subdistricts: * Nanjie Subdistrict (), Beijie Subdistrict (), Chengguan Town Subdistrict (), Xingyuan Subdistrict (), Dongcheng Subdistrict (), Lingbei Subdistrict (), Hongshan Subdistrict (), Reshuitang Subdistrict () Towns: * Wanyuandian (), Songzhangzi (), Sanshijiazi (), Yangzhangzi (), Dao'erdeng (), Songlingzi (), Siguanyingzi (), Goumenzi (), Xiaochengzi (), Siheda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
