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Chaohusaurus
''Chaohusaurus'' is an extinct genus of basal ichthyopterygian, depending on definition possibly ichthyosaur, from the Early Triassic of Chaohu and Yuanan, China. Discovery The type species ''Chaohusaurus geishanensis'' was named and described by Yang Zhongjian and Dong Zhiming in 1972, based on a fossil found during the construction of a railway. The generic name refers to lake Chao Hu. The specific name refers to the Geishan location. The holotype, IVPP V 4001, was uncovered in a layer of the Majianshan Limestone Formation dating from the Anisian. It consists of a partial skeleton, containing the skull and the front torso. In 1985 Chen Lizhu named two additional species based on fossils found in the same formation: ''Anhuisaurus chaoxianensis'' and ''Anhuisaurus faciles''. However, the generic name had already been preoccupied by the lizard '' Anhuisaurus'' Hou 1974. Therefore, ''Anhuisaurus'' Chen 1985 was in 1991 renamed into ''Chensaurus'' by Jean-Michel Mazin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaohusaurus BW
''Chaohusaurus'' is an extinct genus of basal (phylogenetics), basal ichthyopterygian, depending on definition possibly ichthyosaur, from the Early Triassic of Chaohu and Yuanan, China. Discovery The type species ''Chaohusaurus geishanensis'' was named and described by Yang Zhongjian and Dong Zhiming in 1972, based on a fossil found during the construction of a railway. The generic name refers to lake Chao Hu. The specific name (zoology), specific name refers to the Geishan location. The holotype, IVPP V 4001, was uncovered in a layer of the Majianshan Limestone Formation dating from the Anisian. It consists of a partial skeleton, containing the skull and the front torso. In 1985 Chen Lizhu named two additional species based on fossils found in the same formation: ''Anhuisaurus chaoxianensis'' and ''Anhuisaurus faciles''. However, the generic name had already been preoccupied by the lizard ''Anhuisaurus'' Hou 1974. Therefore, ''Anhuisaurus'' Chen 1985 was in 1991 renamed into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaohusaurus AGM CH-628-22
''Chaohusaurus'' is an extinct genus of basal ichthyopterygian, depending on definition possibly ichthyosaur, from the Early Triassic of Chaohu and Yuanan, China. Discovery The type species ''Chaohusaurus geishanensis'' was named and described by Yang Zhongjian and Dong Zhiming in 1972, based on a fossil found during the construction of a railway. The generic name refers to lake Chao Hu. The specific name refers to the Geishan location. The holotype, IVPP V 4001, was uncovered in a layer of the Majianshan Limestone Formation dating from the Anisian. It consists of a partial skeleton, containing the skull and the front torso. In 1985 Chen Lizhu named two additional species based on fossils found in the same formation: ''Anhuisaurus chaoxianensis'' and ''Anhuisaurus faciles''. However, the generic name had already been preoccupied by the lizard '' Anhuisaurus'' Hou 1974. Therefore, ''Anhuisaurus'' Chen 1985 was in 1991 renamed into ''Chensaurus'' by Jean-Michel Mazin e.a. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anhuisaurus
''Chaohusaurus'' is an extinct genus of basal ichthyopterygian, depending on definition possibly ichthyosaur, from the Early Triassic of Chaohu and Yuanan, China. Discovery The type species ''Chaohusaurus geishanensis'' was named and described by Yang Zhongjian and Dong Zhiming in 1972, based on a fossil found during the construction of a railway. The generic name refers to lake Chao Hu. The specific name refers to the Geishan location. The holotype, IVPP V 4001, was uncovered in a layer of the Majianshan Limestone Formation dating from the Anisian. It consists of a partial skeleton, containing the skull and the front torso. In 1985 Chen Lizhu named two additional species based on fossils found in the same formation: ''Anhuisaurus chaoxianensis'' and ''Anhuisaurus faciles''. However, the generic name had already been preoccupied by the lizard '' Anhuisaurus'' Hou 1974. Therefore, ''Anhuisaurus'' Chen 1985 was in 1991 renamed into ''Chensaurus'' by Jean-Michel Mazin e.a. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyosaur
Ichthyosaurs (Ancient Greek for "fish lizard" – and ) are large extinct marine reptiles. Ichthyosaurs belong to the order known as Ichthyosauria or Ichthyopterygia ('fish flippers' – a designation introduced by Sir Richard Owen in 1842, although the term is now used more for the parent clade of the Ichthyosauria). Ichthyosaurs thrived during much of the Mesozoic era; based on fossil evidence, they first appeared around 250 million years ago ( Ma) and at least one species survived until about 90 million years ago, into the Late Cretaceous. During the Early Triassic epoch, ichthyosaurs and other ichthyosauromorphs evolved from a group of unidentified land reptiles that returned to the sea, in a development similar to how the mammalian land-dwelling ancestors of modern-day dolphins and whales returned to the sea millions of years later, which they gradually came to resemble in a case of convergent evolution. Ichthyosaurs were particularly abundant in the Late Triassic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spathian
In the geologic timescale, the Olenekian is an age in the Early Triassic epoch; in chronostratigraphy, it is a stage in the Lower Triassic series. It spans the time between Ma and Ma (million years ago). The Olenekian is sometimes divided into the Smithian and the Spathian subages or substages. The Olenekian follows the Induan and is followed by the Anisian (Middle Triassic). The Olenekian saw the deposition of a large part of the Buntsandstein in Europe. The Olenekian is roughly coeval with the regional Yongningzhenian Stage used in China. Stratigraphic definitions The Olenekian Stage was introduced into scientific literature by Russian stratigraphers in 1956. The stage is named after Olenëk in Siberia. Before the subdivision in Olenekian and Induan became established, both stages formed the Scythian Stage, which has since disappeared from the official timescale. The base of the Olenekian is at the lowest occurrence of the ammonoids '' Hedenstroemia'' or '' Meekoceras gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013 In Paleontology
Plants Cnidarians Arthropods Bryozoans Brachiopods Molluscs Echinoderms Conodonts Fishes Amphibians Research * Laloy ''et al.'' (2013) reinterpret the Eocene frog species ''Rana cadurcorum'' from the Quercy Phosphorites (France) as a junior synonym of '' Thaumastosaurus gezei''. Newly named temnospondyls Newly named lepospondyls Newly named lissamphibians Turtles Research * A study on the anatomy of the brain and inner ear of the Jurassic turtle ''Plesiochelys etalloni'' is published by Paulina Carabajal ''et al.'' (2013). Newly named turtles Thalattosaurs Ichthyopterygians Lepidosauromorphs Newly named sauropterygians Newly named rhynchocephalians Newly named lizards Newly named snakes Archosauromorphs Newly named basal archosauromorphs Archosaurs Other reptiles Synapsids Non-mammalian synapsids Research * The postcranial skeleton of therocephalian '' Ictidosuchoides'' is described by Heidi Fourie (2013). New taxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyopterygia
Ichthyopterygia ("fish flippers") was a designation introduced by Sir Richard Owen in 1840 to designate the Jurassic ichthyosaurs that were known at the time, but the term is now used more often for both true Ichthyosauria and their more primitive early and middle Triassic ancestors. Basal ichthyopterygians (prior to and ancestral to true Ichthyosauria) were mostly small (a meter or less in length) with elongated bodies and long, spool-shaped vertebrae, indicating that they swam in a sinuous, eel-like manner. This allowed for quick movements and maneuverability that were advantages in shallow-water hunting. Even at this early stage, they were already very specialised animals with proper flippers, and would have been incapable of movement on land. These animals seem to have been widely distributed around the coast of the northern half of Pangea, as they are known the Late Olenekian and Early Anisian (early part of the Triassic period) of Japan, China, Canada, and Spitsbergen (No ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Triassic
The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era. It is preceded by the Lopingian Epoch (late Permian, Paleozoic Era) and followed by the Middle Triassic Epoch. The Early Triassic is divided into the Induan and Olenekian ages. The Induan is subdivided into the Griesbachian and Dienerian subages and the Olenekian is subdivided into the Smithian and Spathian subages. The Lower Triassic series is coeval with the Scythian Stage, which is today not included in the official timescales but can be found in older literature. In Europe, most of the Lower Triassic is composed of Buntsandstein, a lithostratigraphic unit of continental red beds. The Early Triassic and partly also the Middle Triassic span the in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chen Lizhu
Chen may refer to: People *Chen (surname) (陳 / 陈), a common Chinese surname * Chen (singer) (born 1992), member of the South Korean-Chinese boy band EXO * Chen Chen (born 1989), Chinese-American poet * (), a Hebrew first name or surname: **Hen Lippin (born 1965), former Israeli basketball player ** Chen Reiss (born 1979), Israeli operatic soprano ** Ronen Chen (born 1965), Israeli fashion designer Historical states *Chen (state) (c. 1045 BC–479 BC), a Zhou dynasty state in present-day Anhui and Henan * Chen (Thessaly), a city-state in ancient Thessaly, Greece *Chen Commandery, a commandery in China from Han dynasty to Sui dynasty * Chen dynasty (557–589), a Chinese southern dynasty during the Northern and Southern dynasties period Businesses and organizations * Council for Higher Education in Newark (CHEN) * Chen ( he, ח״ן), acronym in Hebrew for the Women's Army Corps (, ) a defunct organization in the Israeli Defence Force * Chen, a brand name used by Mexican ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia although some lizards are more closely related to these two excluded groups than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon. Most lizards are quadrupedal, running with a strong side-to-side motion. Some lineages (known as "legless lizards"), have secondarily lost their legs, and have long snake-like bodies. Some such as the forest-dwelling ''Draco'' lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with bright colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit-and-wait predators; many smaller species eat insects, while the Komodo eats mammals a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteology
Osteology () is the scientific study of bones, practised by osteologists. A subdiscipline of anatomy, anthropology, and paleontology, osteology is the detailed study of the structure of bones, skeletal elements, teeth, microbone morphology, function, disease, pathology, the process of ossification (from cartilaginous molds), and the resistance and hardness of bones (biophysics). Osteologists frequently work in the public and private sector as consultants for museums, scientists for research laboratories, scientists for medical investigations and/or for companies producing osteological reproductions in an academic context. Osteology and osteologists should not be confused with the pseudoscientific practice of osteopathy and its practitioners, osteopaths. Methods A typical analysis will include: * an inventory of the skeletal elements present * a dental inventory * aging data, based upon epiphyseal fusion and dental eruption (for subadults) and deterioration of the pubic symp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Michel Mazin
Jean-Michel is a French masculine given name. It may refer to : * Jean-Michel Arnold, General Secretary of the Cinémathèque Française * Jean-Michel Atlan (1913–1960), French artist * Jean-Michel Aulas (born 1949), French businessman * Jean-Michel Badiane (born 1983), French football defender of Senegalese descent * Jean-Michel Basquiat (1960–1988), American artist * Jean-Michel Bayle (born 1969), semi-retired French professional motorcycle racer * Jean-Michel Baylet (born 1946), French politician, Senator, and leader of the Radical Party * Jean-Michel Bazire (born 1971), French harness racing driver * Jean-Michel Bellot (born 1953), retired French male pole vaulter * Jean-Michel Berthelot (1945–2006), French sociologist, philosopher, epistemologist and social theorist * Jean-Michel Bertrand (1943–2008) * Jean-Michel Beysser (1753–1794), French general * Jean-Michel Bismut (born 1948), French mathematician * Jean-Michel Bokamba-Yangouma, Congolese politician * Jean-Michel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
