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Chialingosaurus Kuani
''Chialingosaurus'' (meaning "Chialing Lizard") is a genus of herbivorous stegosaurian dinosaur similar to '' Kentrosaurus'' from the Upper Shaximiao Formation, Late Jurassic beds in Sichuan Province in China. Its age makes it one of the oldest species of stegosaurs, living about 160 million years ago. Since it was an herbivore, scientists think that ''Chialingosaurus'' probably ate ferns and cycads, which were plentiful during the period when ''Chialingosaurus'' was alive. Discovery and species The fossils of ''Chialingosaurus'' were collected by the geologist Kuan Yaowu or Guan Yao-Wu in 1957, at Taipingstai in Quxian County, while surveying the Chialing River in southern China. The type species ''Chialingosaurus kuani'' was named and described by paleontologist Yang Zhongjian, ("C. C. Young") two years later in 1959. The generic name refers to the Chialing. The specific name honours Kuan. ''Chialingosaurus'' was the first stegosaurian described from China.C.-C. Young, 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Jurassic
The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations containing land animal fossils include the Forest Marble Formation in England, the Kilmaluag Formation in Scotland,British Geological Survey. 2011Stratigraphic framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf: research report RR/11/06 British Geological Survey, Keyworth, Nottingham. the Daohugou Beds in China, the Itat Formation in Russia, and the Isalo III Formation of western Madagascar. Paleogeography During the Middle Jurassic Epoch, Pangaea began to separate into Laurasia and Gondwana, and the Atlantic Ocean formed. Eastern Laurasia was tectonically active as the Cimmerian plate continued to collide with Laurasia's southern coast, completely closing the Paleo-Tethys Ocean. A subduction zone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet or species epithet) 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". 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 specific the proper term for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autapomorphy
In phylogenetics, an autapomorphy is a distinctive feature, known as a derived trait, that is unique to a given taxon. That is, it is found only in one taxon, but not found in any others or outgroup taxa, not even those most closely related to the focal taxon (which may be a species, family or in general any clade). It can therefore be considered an apomorphy in relation to a single taxon. The word ''autapomorphy'', first introduced in 1950 by German entomologist Willi Hennig, is derived from the Greek words αὐτός, ''autos'' "self"; ἀπό, ''apo'' "away from"; and μορφή, ''morphḗ'' = "shape". Discussion Because autapomorphies are only present in a single taxon, they do not convey information about relationship. Therefore, autapomorphies are not useful to infer phylogenetic relationships. However, autapomorphy, like synapomorphy and plesiomorphy is a relative concept depending on the taxon in question. An autapomorphy at a given level may well be a synapomorphy at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Malcolm Galton
Peter Malcolm Galton (born 14 March 1942 in London) is a British vertebrate paleontologist who has to date written or co-written about 190 papers in scientific journals or chapters in paleontology textbooks, especially on ornithischian and prosauropod dinosaurs. With Robert Bakker in a joint article published in ''Nature'' in 1974, he argued that dinosaurs constitute a natural monophyletic group, in contrast to the prevailing view that considered them polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of conver ... as consisting of two different not closely related orders, thus initiating a revolution in dinosaur studies and contributing to the revival of the popularity of dinosaurs in the field of paleontology. Publications * * * Galton, P.M., 1974, "The ornithischian dinosaur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mamenchisaurus And Chialingosaurus
''Mamenchisaurus'' (or spelling pronunciation ) is a genus of sauropod dinosaur known for their remarkably long necks which made up nearly half the total body length. Numerous species have been assigned to the genus; however, many of these might be questionable. Fossils have been found in the Sichuan Basin and Yunnan Province in China. Several species are from the Upper Shaximiao Formation whose geologic age is uncertain. However, evidence suggests that this be no earlier than the Oxfordian stage of the Late Jurassic. ''M. sinocanadorum'' dates to the Oxfordian stage (158.7 to 161.2 mya) and ''M. anyuensis'' to the Aptian stage of the Early Cretaceous around 114.4 mya. Most species were medium- to large-size sauropods in length.Russell, D.A., Zheng, Z. (1993). "A large mamenchisaurid from the Junggar Basin, Xinjiang, People Republic of China." ''Canadian Journal of Earth Sciences'', (30): 2082-2095. Two as-yet-undescribed cervical vertebrae, which might belong to ''M. sinocanad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Nudum
In taxonomy, a ''nomen nudum'' ('naked name'; plural ''nomina nuda'') is a designation which looks exactly like a scientific name of an organism, and may have originally been intended to be one, but it has not been published with an adequate description. This makes it a "bare" or "naked" name, which cannot be accepted as it stands. A largely equivalent but much less frequently used term is ''nomen tantum'' ("name only"). In zoology According to the rules of zoological nomenclature a ''nomen nudum'' is unavailable; the glossary of the ''International Code of Zoological Nomenclature'' gives this definition: And among the rules of that same Zoological Code: In botany According to the rules of botanical nomenclature a ''nomen nudum'' is not validly published. The glossary of the ''International Code of Nomenclature for algae, fungi, and plants'' gives this definition: The requirements for the diagnosis or description are covered by articles 32, 36, 41, 42, and 44. ''Nomina nud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cai Kaiji
Cai or CAI may refer to: Places * Cai (state), a state in ancient China * Caí River, Rio Grande do Sul, Brazil * Cái River, Vietnam * Cairo International Airport (IATA airport code) * Caithness, a historic county in Scotland (Chapman code) Organisations * Canadian Airlines International, a defunct Canadian airline * Capitol Archaeological Institute, an American archaeological research and education institute part of The George Washington University * Central Asia Institute, a non-profit organization that promotes education in Central Asia * Chartered Accountants Ireland, Ireland's largest accountancy body * Christian Assemblies International, an Australian-based charity organisation and religious group * Club Alpino Italiano, the Italian alpine club * Coleraine Academical Institution, a school in Northern Ireland * College of Anaesthesiologists of Ireland, a medical training body in Ireland * Community Associations Institute, an influential trade association and special inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhang Yuguang
Zhang may refer to: Chinese culture, etc. * Zhang (surname) (張/张), common Chinese surname ** Zhang (surname 章), a rarer Chinese surname * Zhang County (漳县), of Dingxi, Gansu * Zhang River (漳河), a river flowing mainly in Henan * ''Zhang'' (unit) (丈), a traditional Chinese unit of length equal to 10 ''chi'' (3–3.7 m) * Zhang Zetian, Chinese billionaire * 璋, a type of shaped stone or jade object in ancient Chinese culture thought to hold great value and protective properties; see also Bi (jade) and Cong (jade) A ''cong'' () is a form of ancient Chinese jade artifact. It was later also used in ceramics. History The earliest ''cong'' were produced by the Liangzhu culture ( 3400-2250 BC); later examples date mainly from the Shang and Zhou dynasties. ... Other * Zhang, the proper name of the star Upsilon¹ Hydrae See also * Zang (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Li Kui (paleontologist)
Li Kui may refer to: *Li Kui (legalist), government minister in the Wei state * Li Kui (chancellor), chancellor of the Tang Dynasty *Li Kui (Water Margin) Li Kui is a fictional character in ''Water Margin'', one of the Four Great Classical Novels in Chinese literature. Nicknamed "Black Whirlwind", he ranks 22nd among the 36 Heavenly Spirits. Background The novel depicts Li Kui as having a very d ..., fictional character in the ''Water Margin'' {{hndis, Li, Kui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratype
In zoology and botany, a paratype is a specimen of an organism that helps define what the scientific name of a species and other taxon actually represents, but it is not the holotype (and in botany is also neither an isotype nor a syntype). Often there is more than one paratype. Paratypes are usually held in museum research collections. The exact meaning of the term ''paratype'' when it is used in zoology is not the same as the meaning when it is used in botany. In both cases however, this term is used in conjunction with ''holotype''. Zoology In zoological nomenclature, a paratype is officially defined as "Each specimen of a type series other than the holotype.", ''International Code of Zoological Nomenclature'' In turn, this definition relies on the definition of a "type series". A type series is the material (specimens of organisms) that was cited in the original publication of the new species or subspecies, and was not excluded from being type material by the author (th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zhou Shiwu
Zhou may refer to: Chinese history * King Zhou of Shang () (1105 BC–1046 BC), the last king of the Shang dynasty * Predynastic Zhou (), 11th-century BC precursor to the Zhou dynasty * Zhou dynasty () (1046 BC–256 BC), a dynasty of China ** Western Zhou () (1046 BC–771 BC) ** Eastern Zhou () (770 BC–256 BC) * Western Zhou (state) () (440 BC–256 BC) * Eastern Zhou (state) () (367 BC–249 BC) * Northern Zhou () (557–581), one of the Northern dynasties during the Northern and Southern dynasties period * Wu Zhou () (690–705), an imperial dynasty established by Wu Zetian * Later Zhou () (951–960), the last of the Five dynasties during the Five Dynasties and Ten Kingdoms period * Zhou (Zhang Shicheng's kingdom) () (1354–1367), a state founded by Zhang Shicheng during the Red Turban Rebellion * Zhou (Qing period state) () (1678–1681), a state founded by Wu Sangui during the Qing dynasty Other uses *Zhou (surname) (), Chinese surname *Zhou (country subdivision) (), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kimmeridgian
In the geologic timescale, the Kimmeridgian is an age in the Late Jurassic Epoch and a stage in the Upper Jurassic Series. It spans the time between 157.3 ± 1.0 Ma and 152.1 ± 0.9 Ma (million years ago). The Kimmeridgian follows the Oxfordian and precedes the Tithonian. Stratigraphic definition The Kimmeridgian Stage takes its name from the village of Kimmeridge on the Dorset coast, England. The name was introduced into the literature by French geologist Alcide d'Orbigny in 1842. The Kimmeridge Clay Formation takes its name from the same type location (although this formation extends from the Kimmeridgian stage of the Upper Jurassic into the Lower Cretaceous). It is the source for about 95% of the petroleum in the North Sea. Historically, the term Kimmeridgian has been used in two different ways. The base of the interval is the same but the top was defined by British stratigraphers as the base of the Portlandian (''sensu anglico'') whereas in France the top was defined as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
