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Yangchuanosaurus NT Small
''Yangchuanosaurus'' is an extinct genus of metriacanthosaurid theropod dinosaur that lived in People's Republic of China, China from the Middle Jurassic, Middle to Late Jurassic periods (Bathonian to Oxfordian (stage), Oxfordian stages), and was similar in size and appearance to its North American and European relative, ''Allosaurus''. ''Yangchuanosaurus'' hails from the Upper Shaximiao Formation and was the largest predator in a landscape that included the sauropods ''Mamenchisaurus'' and ''Omeisaurus'' and the Stegosauria, stegosaurs ''Chialingosaurus'', ''Tuojiangosaurus'' and ''Chungkingosaurus''. This theropod was named after the area in which was discovered, Yongchuan, in China. Discovery and species Dong ''et al.'' (1978) named ''Yangchuanosaurus shangyouensis'' on the basis of Municipal Museum of Chongqing, CV 00215, a complete skull and skeleton which was collected from the Shangshaximiao Formation, near Yongchuan, Yongchuan District, Sichuan. It dates to the Oxfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathonian
In the geologic timescale the Bathonian is an age and stage of the Middle Jurassic. It lasted from approximately 168.3 Ma to around 166.1 Ma (million years ago). The Bathonian Age succeeds the Bajocian Age and precedes the Callovian Age. Stratigraphic definitions The Bathonian Stage takes its name from Bath, a spa town in England built on Jurassic limestone (the Latinized form of the town name is ''Bathonium''). The name was introduced in scientific literature by Belgian geologist d'Omalius d'Halloy in 1843. The original type locality was located near Bath. The French palaeontologist Alcide d'Orbigny was in 1852 the first to define the exact length of the stage. The base of the Bathonian is at the first appearance of ammonite species '' Parkinsonia (Gonolkites) convergens'' in the stratigraphic column. The global reference profile for the base of the Bathonian (a GSSP) was ratified as Ravin du Bès, Bas-Auran area, Alpes de Haute Provence, France in 2009. The top of the Bat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauropod
Sauropoda (), whose members are known as sauropods (; from '' sauro-'' + '' -pod'', 'lizard-footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land. Well-known genera include ''Brachiosaurus'', ''Diplodocus'', ''Apatosaurus'' and ''Brontosaurus''. The oldest known unequivocal sauropod dinosaurs are known from the Early Jurassic. ''Isanosaurus'' and ''Antetonitrus'' were originally described as Triassic sauropods, but their age, and in the case of ''Antetonitrus'' also its sauropod status, were subsequently questioned. Sauropod-like sauropodomorph tracks from the Fleming Fjord Formation (Greenland) might, however, indicate the occurrence of the group in the Late Triassic. By the Late Jurassic (150 million yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yongchuan District
Yongchuan () is a district of Chongqing, China, located by the north side of upper reach of Yangtze River, with a history of 1200 years. Yongchuan borders Sichuan province to the southwest and is away from Yuzhong District of central Chongqing and from Chengdu. Administration Yongchuan District administers 19 townships and 3 subdistricts. History Yongchuan enjoys a history of 1200 years. *In 776, Yongchuan county was established. *In 1983, Yongchuan county was put under the administration of Chongqing city. *In 1992, Yongchuan county was promoted to a city level, called Yongchuan city. *In 2006, Yongchuan city was changed into Yongchuan district, a county-level division of Chongqing. Geographic condition Yongchuan is in west Chongqing, in border with Bishan and Jiangjin in east, with Dazu and Rongchang in west, with Tongliang in north, and with Luxiang and Hejiang. Yongchuan is located in 05°37′31″－106°5′7″ of longitude and 28°56′16″－29°34′30″ of n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shangshaximiao Formation
The Shaximiao Formation () is a Middle to Late Jurassic aged geological formation in Sichuan, China, most notable for the wealth of dinosaurs fossils that have been excavated from its strata. The Shaximiao Formation is exposed in and around the small township of Dashanpu (), situated seven kilometres north-east from Sichuan's third largest city, Zigong, in the Da'an District. Geology The Shaximiao Formation includes two distinct subunits: The upper and lower Shaximiao Formations (), although they are commonly referred to as one, simply being called the "Shaximiao Formation". The upper Shaximiao Formation is also known as the Shangshaximiao Formation, and the lower Shaximiao Formation is also known as the Xiashaximiao Formation, which are direct transliterations of the Chinese names. Both subunits primarily consist of purple-red mudstones, with variable sand inclusion. and siltstones with interbedded sandstones. Dinosaur finds The Shaximiao Formation has produced mainly s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skeleton
A skeleton is the structural frame that supports the body of an animal. There are several types of skeletons, including the exoskeleton, which is the stable outer shell of an organism, the endoskeleton, which forms the support structure inside the body, and the hydroskeleton, a flexible internal skeleton supported by fluid pressure. Vertebrates are animals with a vertebral column, and their skeletons are typically composed of bone and cartilage. Invertebrates are animals that lack a vertebral column. The skeletons of invertebrates vary, including hard exoskeleton shells, plated endoskeletons, or Sponge spicule, spicules. Cartilage is a rigid connective tissue that is found in the skeletal systems of vertebrates and invertebrates. Etymology The term ''skeleton'' comes . ''Sceleton'' is an archaic form of the word. Classification Skeletons can be defined by several attributes. Solid skeletons consist of hard substances, such as bone, cartilage, or cuticle. These can be further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skull
The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, these two parts are the neurocranium and the viscerocranium ( facial skeleton) that includes the mandible as its largest bone. The skull forms the anterior-most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part of the facial skeleton. Functions of the skull include protection of the brain, fixing the distance between the eyes to allow stereoscopic vision, and fixing the position of the ears to enable sound localisation of the direction and distance of sounds. In some animals, such as horned ungulates (mammals with hooves), the skull also has a defensive function by providing the mount (on the front ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipal Museum Of Chongqing
A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the governing body of a given municipality. A municipality is a general-purpose administrative subdivision, as opposed to a special-purpose district. The term is derived from French and Latin . The English word ''municipality'' derives from the Latin social contract (derived from a word meaning "duty holders"), referring to the Latin communities that supplied Rome with troops in exchange for their own incorporation into the Roman state (granting Roman citizenship to the inhabitants) while permitting the communities to retain their own local governments (a limited autonomy). A municipality can be any political jurisdiction, from a sovereign state such as the Principality of Monaco, to a small village such as West Hampton Dunes, New York. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yangchuanosaurus Zigongensis
''Yangchuanosaurus'' is an extinct genus of metriacanthosaurid theropod dinosaur that lived in China from the Middle to Late Jurassic periods (Bathonian to Oxfordian stages), and was similar in size and appearance to its North American and European relative, ''Allosaurus''. ''Yangchuanosaurus'' hails from the Upper Shaximiao Formation and was the largest predator in a landscape that included the sauropods ''Mamenchisaurus'' and ''Omeisaurus'' and the stegosaurs ''Chialingosaurus'', ''Tuojiangosaurus'' and ''Chungkingosaurus''. This theropod was named after the area in which was discovered, Yongchuan, in China. Discovery and species Dong ''et al.'' (1978) named ''Yangchuanosaurus shangyouensis'' on the basis of CV 00215, a complete skull and skeleton which was collected from the Shangshaximiao Formation, near Yongchuan, Yongchuan District, Sichuan. It dates to the Oxfordian stage of the Late Jurassic period, about 161.2 to 157.3 million years ago. It was discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yongchuan
Yongchuan () is a district of Chongqing, China, located by the north side of upper reach of Yangtze River, with a history of 1200 years. Yongchuan borders Sichuan province to the southwest and is away from Yuzhong District of central Chongqing and from Chengdu. Administration Yongchuan District administers 19 townships and 3 subdistricts. History Yongchuan enjoys a history of 1200 years. *In 776, Yongchuan county was established. *In 1983, Yongchuan county was put under the administration of Chongqing city. *In 1992, Yongchuan county was promoted to a city level, called Yongchuan city. *In 2006, Yongchuan city was changed into Yongchuan district, a county-level division of Chongqing. Geographic condition Yongchuan is in west Chongqing, in border with Bishan and Jiangjin in east, with Dazu and Rongchang in west, with Tongliang in north, and with Luxiang and Hejiang. Yongchuan is located in 05°37′31″－106°5′7″ of longitude and 28°56′16″－29°34′30″ of n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chungkingosaurus
''Chungkingosaurus'', meaning "Chongqing Lizard", is a genus of herbivorous dinosaur from the Late Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ... Upper Shaximiao Formation in what is now China. It is a member of the Stegosauria. Description According to Dong e.a. the ''Chungkingosaurus jiangbeiensis'' holotype was one of the smallest stegosaurs with a length of less than four metres, even though it was apparently an adult, judging by the ossification of the sacrum. ''Chungkingosaurus'' sp. 1 was estimated at five metres; ''Chungkingosaurus'' sp. 2 was seen as longer than five metres. Dong e.a. indicated that ''Chungkingosaurus'' strongly resembled ''Tuojiangosaurus'', found in the same formation, in many anatomical details. ''Chungkingosaurus'' was different in its sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuojiangosaurus
''Tuojiangosaurus'' (meaning "Tuo River lizard") is a genus of herbivorous stegosaurian dinosaur from the Late Jurassic Period, recovered from the Upper Shaximiao Formation of what is now Sichuan Province in China. Description ''Tuojiangosaurus'' was a large stegosaur, reaching in length and in body mass. Physically similar to the North American ''Stegosaurus'', ''Tuojiangosaurus'' is the best understood of the Chinese stegosaurs. In 1977, Dong provided a diagnosis but this largely consisted of traits shared with other stegosaurus. In 1990, Peter Malcolm Galton pointed out an autapomorphy: the spines of the vertebrae of the tail base possess spines with bony skirts running from their front to the sides. ''Tuojiangosaurus'' has the typical narrow and low head, bulky body, and low teeth of other stegosaurids. The limbs, especially the arms, are rather short.Paul, G.S., 2010, ''The Princeton Field Guide to Dinosaurs'', Princeton University Press p. 221 There are at least twenty- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chialingosaurus
''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, 195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
