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Bajadasaurus Maps
''Bajadasaurus'' is a genus of sauropod dinosaur from the Early Cretaceous epoch ( late Berriasian to Valanginian stages, between 145 and 132.9 million years ago) of northern Patagonia, Argentina. It was first described in 2019 based on a single specimen found in 2010 that includes a largely complete skull and parts of the neck. The only species is ''Bajadasaurus pronuspinax''. The genus is classified as a member of the Dicraeosauridae, a group of relatively small and short-necked sauropods. ''Bajadasaurus'' sported bifurcated (two-pronged), extremely elongated extending from the neck. Similarly elongated spines are known from the closely related and more completely known ''Amargasaurus''. Several possible functions have been proposed for these spines in ''Amargasaurus''; the 2019 description of ''Bajadasaurus'' suggested that they could have served as passive defense against predators in both genera. The skull was slender and equipped with around 48 teeth that were pencil-shaped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous (geochronological name) or the Lower Cretaceous ( chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java- Manihiki- Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kergue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bajada Colorada Formation
The Bajada Colorada Formation is a geologic formation of the southern Neuquén Province in the Neuquén Basin of northern Patagonia, Argentina. The formation belongs to the Mendoza Group and is Berriasian, Late Berriasian to Valanginian, Early Valanginian in age. The formation is renowned for preserving fossil remains of ''Bajadasaurus, Bajadasaurus pronuspinax'', a genus of dicraeosauridae, dicraeosaurid dinosaurs named after the formation. Description The Bajada Colorada Formation, first defined by Roll in 1939, pertains to the Mendoza Group Mendoza may refer to: Places Argentina * Greater Mendoza, the name given to the large urban conurbation around the city of Mendoza * Mendoza, Argentina, the capital of the province of Mendoza * Mendoza Department, subdivision of the Mendoza Provi ....Moyano Bohórquez, 2004 It overlies the Quituco Formation, Quintuco and Picún Leufú Formations and is overlain by the Agrio Formation. The contact with the Agrio Formation is unconformity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuquén Province
Neuquén () is a province of Argentina, located in the west of the country, at the northern end of Patagonia. It borders Mendoza Province to the north, Rio Negro Province to the southeast, and Chile to the west. It also meets La Pampa Province at its northeast corner. History The Neuquén Province receives its name from the Neuquén River. The term ''"Neuquén"'' derives from the Mapudungun word ''"Nehuenken"'' meaning ''drafty'', which the aborigines used for the river. The word (without the accentuation) is a palindrome. Lácar Department in Neuquén Province has the southernmost known remains of maize before it was further diffused by the Inca Empire. Maize remains were found as far south as 40°19' S in Melinquina, with it being found inside pottery dated to 730 ±80 BP and 920 ±60 BP. This maize was probably brought across the Andes from Chile. Inhabited by Tehuelches and Pehuenche, the territory was initially explored by conquistadores coming from Chile. In 16 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Villa El Chocón
Villa El Chocón is a village and municipality in Neuquén Province in southwestern Argentina. The village was initially created to house the workmen building the Ezequiel Ramos Mexía dam (colloquially known as El Chocón Dam) on the Limay River. The dam is now completed and is the site of one of the main hydroelectric power plants in Argentina. Located in Villa El Chocón is the Ernesto Bachmann Paleontological Museum, which exhibits several fossil remains found nearby, notably those of ''Giganotosaurus''. Also, near Villa El Chocón, were found several groups of fossil dinosaur footprints . History In 1967 the national government created the company Hidroeléctrica Norpatagónica S.A. (HIDRONOR S.A.) to develop hydroelectrical facilities in the Limay River and in the Neuquén River. So, in late 1968, HIDRONOR S.A. begins the works at the Complejo Hidroeléctrico Chocón-Cerros Colorados. The first workshops, accesses, camps and pieces of equipment are then located. Due to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museo Municipal Ernesto Bachmann
Museo may refer to: * Museo, 2018 Mexican drama heist film *Museo (Naples Metro) Museo is a station on line 1 of the Naples Metro. It was opened on 5 April 2001 as the eastern terminus of the section of the line between Vanvitelli and Museo. On 27 March 2002 the line was extended to Dante Dante Alighieri (; – 14 S ..., station on line 1 of the Naples Metro * Museo, Seville, neighborhood of Seville, Spain {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Preparation
Fossil preparation is the act of preparing fossil specimens for use in paleontological research or for exhibition, and involves removing the surrounding rocky matrix and cleaning the fossil. Techniques Acid maceration Acid maceration is a technique to extract organic microfossils from a surrounding rock matrix using acid. Hydrochloric acid or acetic acid may be used to extract phosphatic fossils, such as the small shelly fossils, from a carbonate matrix. Hydrofluoric acid is also used in acid macerations to extract organic fossils from silicate rocks. Fossiliferous rock may be immersed directly into the acid, or a cellulose nitrate film may be applied ( dissolved in amyl acetate), which adheres to the organic component and allows the rock to be dissolved around it. Film pull The film pull technique is a means of recovering carbonaceous compression fossils for study under transmitted light microscopy. An acid is applied to the surface of the rock to etch away the matrix fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuquén Basin
Neuquén Basin ( es, Cuenca Neuquina) is a sedimentary basin covering most of Neuquén Province in Argentina. The basin originated in the Jurassic and developed through alternating continental and marine conditions well into the Tertiary. The basin bounds to the west with the Andean Volcanic Belt, to the southeast with the North Patagonian Massif and to the northeast with the San Rafael Block and to the east with the Sierra Pintada System. The basin covers an area of approximately .Howell et al., 2005 One age of the SALMA classification, the Colloncuran, is defined in the basin, based on the Collón Curá Formation, named after the Collón Curá River, a tributary of the Limay River. Description Jurassic and Cretaceous marine transgressions from the Pacific are recorded in the sediments of Neuquén Basin. These marine sediments belong to Cuyo Group, Tordillo Formation, Auquilco Formation and Vaca Muerta. In the Late Cretaceous, conditions in the neighboring Andean orogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limay River
The Limay River is an important river in the northwestern Argentine Patagonia (the region of Comahue). It originates at the eastern end of the Nahuel Huapi Lake and flows in a meandering path for about , collecting the waters of several tributaries, such as the Traful River, the Pichileufú and the Collón Curá. It then meets the Neuquén River and together they become the Río Negro. At this confluence lies the city of Neuquén. The river serves as natural border between the provinces of Río Negro and Neuquén. Its deep waters are clear, and carry a large flow, on average. Its drainage basin has an area of and includes almost all the rivers and streams of the Atlantic basin in the region, as well as an extensive network of lakes. The waters of the Limay are used to generate hydroelectricity Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picún Leufú
Picún Leufú is a second category municipality and the capital of Picún Leufú Department located in Neuquén Province, Argentina. History Picún Leufú was established on September 12, 1971. Culture The name of the town comes from Mapudungun Mapuche (, Mapuche & Spanish: , or Mapudungun; from ' 'land' and ' 'speak, speech') is an Araucanian language related to Huilliche spoken in south-central Chile and west-central Argentina by the Mapuche people (from ''mapu'' 'land' and ''che ... and it means ''North River''. Populated places in Neuquén Province {{Neuquén-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Scientific And Technical Research Council
National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, census-designated place * National, Nevada, ghost town * National, Utah, ghost town * National, West Virginia, unincorporated community Commerce * National (brand), a brand name of electronic goods from Panasonic * National Benzole (or simply known as National), former petrol station chain in the UK, merged with BP * National Car Rental, an American rental car company * National Energy Systems, a former name of Eco Marine Power * National Entertainment Commission, a former name of the Media Rating Council * National Motor Vehicle Company, Indianapolis, Indiana, USA 1900-1924 * National Supermarkets, a defunct American grocery store chain * National String Instrument Corporation, a guitar company formed to manufacture the first reso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bajadasaurus Maps
''Bajadasaurus'' is a genus of sauropod dinosaur from the Early Cretaceous epoch ( late Berriasian to Valanginian stages, between 145 and 132.9 million years ago) of northern Patagonia, Argentina. It was first described in 2019 based on a single specimen found in 2010 that includes a largely complete skull and parts of the neck. The only species is ''Bajadasaurus pronuspinax''. The genus is classified as a member of the Dicraeosauridae, a group of relatively small and short-necked sauropods. ''Bajadasaurus'' sported bifurcated (two-pronged), extremely elongated extending from the neck. Similarly elongated spines are known from the closely related and more completely known ''Amargasaurus''. Several possible functions have been proposed for these spines in ''Amargasaurus''; the 2019 description of ''Bajadasaurus'' suggested that they could have served as passive defense against predators in both genera. The skull was slender and equipped with around 48 teeth that were pencil-shaped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theropoda
Theropoda (; ), whose members are known as theropods, is a dinosaur clade that is characterized by hollow bones and three toes and claws on each limb. Theropods are generally classed as a group of saurischian dinosaurs. They were ancestrally carnivorous, although a number of theropod groups evolved to become herbivores and omnivores. Theropods first appeared during the Carnian age of the late Triassic period 231.4 million years ago ( Ma) and included all the large terrestrial carnivores from the Early Jurassic until at least the close of the Cretaceous, about 66 Ma. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are today represented by about 10,500 living species. Biology Diet and teeth Theropods exhibit a wide range of diets, from insectivores to herbivores and carnivores. Strict carnivory has always been considered the ancestral diet for theropods as a group, and a wider variety of diets was historically considered a characteris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
