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1989 In Paleontology
Paleozoology Arthropods Newly named insects Conodont paleozoology German paleontologist and stratigrapher Heinz Walter Kozur (1942-2013) described the conodont genus ''Mesogondolella''. Vertebrate paleozoology Plesiosaurs * Plesiosaur gastroliths documented.Chatterjee and Small (1989). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167. = New taxa = Archosauromorphs = Newly named pseudosuchians = = Newly named dinosaurs = Data courtesy of George Olshevsky's dinosaur genera list. = Newly named birds = Pterosaurs = New taxa = Synapsids = Non-mammalian = References {{portal, Paleontology * Chatterjee, Sankar and Small, Bryan J.; 1989; New plesiosaurs from the Upper Cretaceous of Antarctica; 47 pp. 197–215 in Origins and Evolution of the Antarctic Biota, Geological Society Special Pub., edited by Crame, J.A. * Sanders F, Manley K, Carpenter K. Gastroliths from the Lower Cretaceous sauropod Cedarosaurus weiskopfae. In: Tank ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphaenogaster Avita
''Aphaenogaster avita'' is an extinct species of ant in the subfamily Myrmicinae known from a solitary early to middle Miocene fossil found in Japan. At the time of description ''A. praerelicta'' was one of twelve '' Aphaenogaster'' species to have been described from fossils and the only fossil species from Japan. History and classification ''Aphaenogaster avita'' is known from a solitary fossil insect which is a compression-impression fossil preserved in a layer of soft diatomite. Along with several other insect fossils, the ''A. avita'' specimen was collected in 1969 from layers of the early to middle Miocene Chojabaru Formation. The formation is composed of diatomites, sandstones and mudstones with the insects recovered from the upper and middle sections. The formation outcrops in a small area on Cape Chojabaru on the eastern side of Iki Island, and the flora of the formation is notably similar to that of Daijima flora, which is noted to be Middle Miocene in age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norian
The Norian is a division of the Triassic Period. It has the rank of an age (geochronology) or stage (chronostratigraphy). It lasted from ~227 to million years ago. It was preceded by the Carnian and succeeded by the Rhaetian. Stratigraphic definitions The Norian was named after the Noric Alps in Austria. The stage was introduced into scientific literature by Austrian geologist Edmund Mojsisovics von Mojsvar in 1869. The Norian Stage begins at the base of the ammonite biozones of '' Klamathites macrolobatus'' and '' Stikinoceras kerri'', and at the base of the conodont biozones of '' Metapolygnathus communisti'' and '' Metapolygnathus primitius''. A global reference profile for the base (a GSSP) had in 2009 not yet been appointed. The top of the Norian (the base of the Rhaetian) is at the first appearance of ammonite species '' Cochloceras amoenum''. The base of the Rheatian is also close to the first appearance of conodont species '' Misikella spp.'' and '' Epigondolella mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khodzhakul Formation
The Khodzhakul Formation is a Cenomanian aged geologic formation in Uzbekistan. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, et al., 2004, "Dinosaur distribution." pp.517-607 As well as those of Mammals. It is part of the same stratigraphic succession as the overlying Bissekty Formation. Fossil content One of the largest mammals of the Mesozoic, ''Oxlestes'', occurred in this formation, and may have predated on dinosaur species.Michael J. Benton,Mikhail A. Shishkin, David M. Unwin, The Age of Dinosaurs in Russia and Mongolia, Cambridge University Press, 04/12/2003 - 740 páginas See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * List of stratigraphic units with dinosaur body fossils ** List of stratigraphic units with ... References Bibliography * {{ISBN, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lev A
Lev may refer to: Common uses *Bulgarian lev, the currency of Bulgaria *an abbreviation for Leviticus, the third book of the Hebrew Bible and the Torah People and fictional characters *Lev (given name) *Lev (surname) Places *Lev, Azerbaijan, a village * Lev (crater), a tiny lunar crater LEV *Laborious Extra-Orbital Vehicle, a mecha from the video game ''Zone of the Enders'' *Lay eucharistic visitor, an extraordinary minister of Holy Communion approved by a church (usually Episcopalian or Lutheran) to bring Communion to the homebound *Libreria Editrice Vaticana, the Vatican Publishing House *Light electric vehicle, an electric bicycle * Local exhaust ventilation, the process of "changing" or replacing air to improve indoor air quality *Low emission vehicle, a motor vehicle that emits relatively low levels of motor vehicle emissions *Lunar Excursion Vehicle, an early name for the Apollo Lunar Module *Longevity escape velocity, a hypothetical situation wherein the average human li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asiaceratops
''Asiaceratops'' (meaning "Asian horned face") is a genus of herbivorous ceratopsian dinosaur. It lived during the Early-Late Cretaceous. The type species, ''A. salsopaludalis'' is known from Uzbekistan, while ''A. sulcidens'' is known from China and Mongolia. Discovery and naming The type species, ''Asiaceratops salsopaludalis'', was formally described by Lev Nesov, L.F. Kaznyshkina and Gennadiy Olegovich Cherepanov in 1989. The generic name combines a reference to Asia with ''~ceratops'', "horned face". The specific name means "of the salt marsh" in Latin. In the same publication '' Microceratops sulcidens'' Bohlin 1953 was renamed into a second species of ''Asiaceratops'': ''Asiaceratops sulcidens''.L.A. Nessov, L F. Kaznyshkina, and G.O. Cherepanov. (1989). esozoic ceratopsian dinosaurs and crocodiles of central Asia In: Bogdanova and Khozatskii (eds.), ''Theoretical and Applied Aspects of Modern Palaeontology'' pp 144-154 The holotype of ''Asiaceratops salsopaludalis'', CC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abrosaurus2
''Abrosaurus'' (; 'delicate lizard' from the Greek ' meaning 'delicate' or 'dainty' and meaning 'lizard') is a genus of macronarian sauropod dinosaur from the Middle Jurassic Period of what is now Asia, one of many dinosaurs found at the Dashanpu Quarry in the Sichuan Province of China. Like most sauropods, ''Abrosaurus'' was a quadrupedal herbivore but it was rather small for a sauropod, not much more than long. Its head was boxy and topped with a tall bony arch containing the nostrils. The generic name (meaning "delicate lizard") refers to the nature of the skull, with large openings separated by thin bony struts. The only named species is ''A. dongpoi'', is named after eleventh-century Chinese poet Su Shi, also known as Su Dongpo, who was born in Sichuan. Discovery and naming The naming of ''Abrosaurus'' has been a long and convoluted process. ''Abrosaurus'' was discovered in 1984 and was first described in the 1986 Ph.D. thesis of Chinese paleontologist Ouyang Hui, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macronarian
Macronaria is a clade of sauropod dinosaurs. Macronarians are named after the large diameter of the nasal opening of their skull, known as the external naris, which exceeded the size of the orbit, the skull opening where the eye is located (hence ''macro''- meaning large, and –''naria'' meaning nose). Fossil evidence suggests that macronarian dinosaurs lived from the Middle Jurassic (Bathonian) through the Late Cretaceous (Maastrichtian). Macronarians have been found globally, including discoveries in Argentina, the United States, Portugal, China, and Tanzania. Like other sauropods, they are known to have inhabited primarily terrestrial areas, and little evidence exists to suggest that they spent much time in coastal environments. Macronarians are diagnosed through their distinct characters on their skulls, as well as appendicular and vertebral characters. Macronaria is composed of several subclades and families notably including Camarasauridae and Titanosauriformes, among severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaximiao Formation
The Shaximiao Formation () is a Middle Jurassic, 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, Zigong, 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 Transliteration, transliterations of the Chinese names. Both subunits primarily consist of purple-red mudstones, with variable sand inclusion. and siltstones with interbedded sandstones. Dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callovian
In the geologic timescale, the Callovian is an age and stage in the Middle Jurassic, lasting between 166.1 ± 4.0 Ma (million years ago) and 163.5 ± 4.0 Ma. It is the last stage of the Middle Jurassic, following the Bathonian and preceding the Oxfordian. Stratigraphic definitions The Callovian Stage was first described by French palaeontologist Alcide d'Orbigny in 1852. Its name derives from the latinized name for Kellaways Bridge, a small hamlet 3 km north-east of Chippenham, Wiltshire, England. The base of the Callovian is defined as the place in the stratigraphic column where the ammonite genus ''Kepplerites'' first appears, which is the base of the biozone of '' Macrocephalites herveyi''. A global reference profile (a GSSP) for the base had in 2009 not yet been assigned. The top of the Callovian (the base of the Oxfordian) is at the first appearance of ammonite species '' Brightia thuouxensis''. Subdivision The Callovian is often subdivided into three substages ( ... [...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] |
Abrosaurus
''Abrosaurus'' (; 'delicate lizard' from the Greek ' meaning 'delicate' or 'dainty' and meaning 'lizard') is a genus of macronarian sauropod dinosaur from the Middle Jurassic Period of what is now Asia, one of many dinosaurs found at the Dashanpu Quarry in the Sichuan Province of China. Like most sauropods, ''Abrosaurus'' was a quadrupedal herbivore but it was rather small for a sauropod, not much more than long. Its head was boxy and topped with a tall bony arch containing the nostrils. The generic name (meaning "delicate lizard") refers to the nature of the skull, with large openings separated by thin bony struts. The only named species is ''A. dongpoi'', is named after eleventh-century Chinese poet Su Shi, also known as Su Dongpo, who was born in Sichuan. Discovery and naming The naming of ''Abrosaurus'' has been a long and convoluted process. ''Abrosaurus'' was discovered in 1984 and was first described in the 1986 Ph.D. thesis of Chinese paleontologist Ouyang Hui, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
