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Berriasella
''Berriasella'' is a discoidal evolute perisphinctacean ammonite, and type genus for the neocomitid subfamily Berriasellinae. Its ribbing is distinct, consisting of both simple and bifurcated ribs that extend from the umbilical seam across the venter; its whorl section generally compressed, the venter more or less narrowly rounded. The species ''Berriasella jacobi'' traditionally has been regarded an index fossil defining the base of the Cretaceous, however since 2016 this had been replaced by the first occurrence of '' Calpionella alpina''. Some authors regard ''B. jacobi'' as instead belonging to the genus '' Strambergella.'' ''Berriasella'', named by Uhlig, 1905, is known from the late Upper Jurassic, Tithonian, to the early Lower Cretaceous, Berriasian and has a fairly worldwide distribution.Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berriasella Jacobi
''Berriasella'' is a discoidal evolute Perisphinctaceae, perisphinctacean ammonite, and type genus for the Neocomitidae, neocomitid subfamily Berriasellinae. Its ribbing is distinct, consisting of both simple and bifurcated ribs that extend from the umbilical seam across the venter; its whorl section generally compressed, the venter more or less narrowly rounded. The species ''Berriasella jacobi'' traditionally has been regarded an index fossil defining the base of the Cretaceous, however since 2016 this had been replaced by the first occurrence of ''Calpionella, Calpionella alpina''. Some authors regard ''B. jacobi'' as instead belonging to the genus ''Strambergella.'' ''Berriasella'', named by Uhlig, 1905, is known from the late Upper Jurassic, Tithonian, to the early Lower Cretaceous, Berriasian and has a fairly worldwide distribution. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocomitidae
Neocomitidae is a family of Lower Cretaceous Epoch, Lower Cretaceous Ammonitida, ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was regarded as the subfamily Neocomitinae within the Berriasellidae, a family within the Perisphinctoidea that ranged from the Late Jurassic into the Early Cretaceous. In a more recent treatment berriaselids are regarded as a subfamily within the Neocomitidae. Current opinion differs from the 1967 placement of Neocomitidae in the Perisphinctoidea but rather includes it in the superfamily Endemoceratoidea. Genera *''Acanthodiscus'' Uhlig, 1905 *''Argentiniceras'' Spath, 1924 *''Berriasella'' Uhlig, 1905 *''Decliveites'' Aguirre-Urreta and Rawson, 2010 *''Delphinella'' Le Hegarat, 1973 *''Delphinites'' Sayn, 1901 *''Distoloceras'' Alpheus Hyatt, Hyatt, 1900 *''Elenaella'' Nikolov, 1966 *''Eleniceras'' Stoych ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berriasian
In the geological timescale, the Berriasian is an age/ stage of the Early/Lower Cretaceous. It is the oldest subdivision in the entire Cretaceous. It has been taken to span the time between 143.1 ±0.6 Ma and 137.05 ± 0.2 (million years ago). The Berriasian succeeds the Tithonian (part of the Jurassic) and precedes the Valanginian. Stratigraphic definition The Berriasian Stage was introduced in scientific literature by Henri Coquand in 1869. It is named after the village of Berrias in the Ardèche department of France. The largely non-marine English Purbeck Formation is in part of Berriasian age. The first rocks to be described of this age were the beds of the English Purbeck Formation, named as the Purbeckian by Alexandre Brongniart in 1829 following description by Henry De la Beche, William Buckland, Thomas Webster and William Henry Fitton. The base of the Berriasian, which is also the base of the Cretaceous System, has traditionally been placed at the first appea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berriasellinae
Berriasellinae is a subfamily of very late Jurassic and very early Cretaceous Perisphinctaceae, perisphinctoid ammonites in the family Neocomitidae. Berriasellinae comprises generally compressed, evolute genera, typically with furcated ribbing, and in some a smooth ventral band or groove. Berriasellinae are derived from the Ataxioceratidae and gave rise to the other Neocomitidae. The short lived Himalayitidae from the uppermost Jurassic have a similar appearance but differ in being generally broader and having sharper ribbing. In current classifications (e.g. Donovan ''et al.'' 1981) berriasellid perisphinctaceans are included in the Neocomitidae as a subfamily, the Berriasellinae. In older classification such as the Treatise on Invertebrate Paleontology, Treatise on Invertebrate Paleontology, part L (1957), neocomitid genera are included in the Berriasellidae, ''sensu lato'', as the Neocomitinae. Berriasellinae includes the genera ''Andiceras'', ''Berriasella'', ''Blanfordi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the emergence of the Atlantic Ocean, which initially was relatively narrow. Life forms This epoch is well known for many famous types of dinosaurs, such as the sauropods, the theropods, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tithonian
In the geological timescale, the Tithonian is the latest age (geology), age of the Late Jurassic Epoch and the uppermost stage (stratigraphy), stage of the Upper Jurassic Series. It spans the time between 149.2 ±0.7 annum, Ma and 143.1 ±0.6 (million years ago). It is preceded by the Kimmeridgian and followed by the Berriasian (part of the Cretaceous). Stratigraphic definitions The Tithonian was introduced in scientific literature by German stratigrapher Albert Oppel in 1865. The name Tithonian is unusual in geological stage names because it is derived from Greek mythology. Tithonus was the son of Laomedon of Troy and fell in love with Eos, the Greek goddess of dawn. His name was chosen by Albert Oppel for this stratigraphy, stratigraphical stage because the Tithonian finds itself hand in hand with the dawn of the Cretaceous. The base of the Tithonian stage is at the base of the ammonite biozone of ''Hybonoticeras, Hybonoticeras hybonotum''. A global reference profile (a GSSP, G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muktinath
Muktinath is an ancient Vishnu temple located in Mustang, Nepal. The temple of Muktinath, known as 'the lord of liberation', is sacred to both Hindus and Buddhists whom they worship as an abode of Hindu deity Vishnu and Buddhist deity Avalokiteśvara respectively. Located in the Muktinath valley at the foot of the Thorong La mountain pass, it is one of the world's highest temples at an altitude of 3,800 meters. The temple is given a status of one of the 108 Divya Desams of Hinduism (and the only Divya Desam located outside India) as well as one of the eight most sacred shrines, known as Svayam Vyakta Ksetras, of Vaishnavism. It is also one of the 51 Shakta pithas, associated with the head of goddess Sati. The temple complex is known as ''Mukti Kshetra'', which literally means "the place of liberation (moksha)" and is one of the Char Dham in Nepal.] For Buddhists, Muktinath is an abode of dakinis - goddesses known as Sky Dancers and is considered one of the twenty-four Tantri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buenavista Breccia
Buenavista may refer to: Colombia * Buenavista, Boyacá, a municipality in the department of Boyacá * Buenavista, Córdoba, a municipality in the department of Córdoba * Buenavista, Sucre, a municipality in the department of Sucre * Buenavista, Quindío, a municipality in the department of Quindío Costa Rica * Buenavista District, Guatuso, a Alajuela Province Cuba * Buenavista, Havana Mexico * BuenaVista, Baja California Sur, a town near Los Barriles, Baja California Sur * Buenavista de Cuéllar, Guerrero * Buenavista, Tultitlán, State of Mexico * Buenavista, Michoacán * Mission San Francisco Buenavista, a historical designation of Cajeme, Sonora * Buenavista mine, a copper mine in Cananea, Sonora * Colonia Buenavista, Cuauhtémoc, Mexico City Philippines * Buenavista, Agusan del Norte, a 1st class municipality * Buenavista, Bohol, a 4th class municipality * Buenavista, Guimaras, a 2nd class municipality * Buenavista, Marinduque, a 4th class municipality * Buenav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
