Microcleidus Brachypterygius
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Microcleidus Brachypterygius
''Hydrorion'' (meaning 'water hunter') is a genus of plesiosaur from the Toarcian Age of the Lower Jurassic. It is only known from multiple specimens, all discovered in the Posidonia Shale of south-western Germany. The only species of ''Hydrorion'' is ''H. brachypterygius'', which was originally described as a species of ''Plesiosaurus'' and then ''Microcleidus''. It was a relatively small plesiosaur, with the largest specimen measuring long. See also * Timeline of plesiosaur research This timeline of plesiosaur research is a chronologically ordered list of important fossil discoveries, controversies of interpretation, Taxonomy (biology), taxonomic revisions, and cultural portrayals of plesiosaurs, an order of marine reptiles ... References Jurassic plesiosaurs of Europe Fossils of Germany Sauropterygian genera {{plesiosaur-stub ...
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Lower Jurassic
The Early Jurassic Epoch (in chronostratigraphy corresponding to the Lower Jurassic Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic–Jurassic extinction event, 201.3 Ma (million years ago), and ends at the start of the Middle Jurassic 174.7 ±0.8 Ma. Certain rocks of marine origin of this age in Europe are called " Lias" and that name was used for the period, as well, in 19th-century geology. In southern Germany rocks of this age are called Black Jurassic. Origin of the name Lias There are two possible origins for the name Lias: the first reason is it was taken by a geologist from an English quarryman's dialect pronunciation of the word "layers"; secondly, sloops from north Cornish ports such as Bude would sail across the Bristol Channel to the Vale of Glamorgan to load up with rock from coastal limestone quarries (lias and Carboniferous limestone from South Wales was used throughout North Devon/N ...
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Franziska Großmann
Franziska may refer to: People * Franziska (given name) * Patrick Franziska (born 1992), German table tennis player Characters * Franziska von Karma, character in the ''Ace Attorney'' series Other uses * ''Franziska'' (play), a 1912 play by the German dramatist Frank Wedekind * Franziska Tesaurus, a Gepid royal tomb found in Romania * 520 Franziska, an Eoan asteroid from the outer regions of the asteroid belt * Franziska, an Italian ska band See also * Francis (given name) * Fränzi * ''Franziska Linkerhand'', a 1974 novel by Brigitte Reimann * ''MS Franziska ''MS Franziska'' is a German television series. See also *List of German television series The following is a list of television series produced in Germany: Current Drama * ''4 Blocks (TV series), 4 Blocks'' (TNT Serie, 2017–2019) * ''A ...
'', a German television series {{disambiguation ...
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2007 In Paleontology
Plants Angiosperms General paleobotanical research *An approximately Pennsylvanian ( Desmoinesian) age rainforest is reported from the Herrin #6 coal mine in Illinois by DiMichele ''et al''. Fungi newly named Arthropoda Crustaceans Research * Schram (2007) publishes a revision of Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ... stomatopods, erecting the families Gorgonophontidae and Daidalidae. New taxa Insects New taxa Fish Bony fish * * * Cartilaginous fish * Archosauromorphs Pseudosuchians Pterosaurs Newly named non-dinosaurian dinosauromorphs Newly named non-avian dinosauromorphs Data courtesy of George Olshevky's dinosaur genera list. Newly named birds Lepidosauromorpha Plesiosaurs * * Synapsids Non-mammalian Mammals ...
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Friedrich Von Huene
Baron Friedrich Richard von Hoyningen-Huene (22 March 1875 – 4 April 1969) was a German nobleman paleontologist who described a large number of dinosaurs, more than anyone else in 20th-century Europe. He studied a range of Permo-Carboniferous tetrapods. He worked at the collections of the institute and museum for geology and paleontology at the University of Tübingen. Biography Von Huene was born in Tübingen, Kingdom of Württemberg and came from a noble Baltic German family. He took this Baltic identity to heart and would later call his home on Zeppelinstraße (now Payerstraße) as ''Villa Baltica''. His father Johannes von Hoyningen called Huene was a Lutheran minister who had studied theology at Göttingen, Tübingen and Dorpat. His mother Alexandra Baronesse Stackelberg came from an Estonian noble family. The junior Huene was also brought up with deeply religious beliefs. He grew up in Switzerland as his father taught at Basel. He also visited Latvia as a child and ...
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1923 In Paleontology
Plants Conifers Araucariaceae †Cheirolepidiaceae Cupressaceae Pinaceae Podocarpaceae Angiosperms Basal eudicots Superroids =Fagales= =Malvales= ''Incertae sedis'' Arthropoda Insects Archosauromorpha Dinosaurs New taxa Pterosaurs New taxa Synapsids Non-mammalian References {{portal, Paleontology 1920s in paleontology 1923 in science, Paleontology 3 ...
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Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ...
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Plesiosaur
The Plesiosauria or plesiosaurs are an Order (biology), order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period (geology), Period, possibly in the Rhaetian stage, about 203 million years ago. They became especially common during the Jurassic Period, thriving until their disappearance due to the Cretaceous–Paleogene extinction event at the end of the Cretaceous Period, about 66 million years ago. They had a worldwide oceanic distribution, and some species at least partly inhabited freshwater environments. Plesiosaurs were among the first fossil reptiles discovered. In the beginning of the nineteenth century, scientists realised how distinctive their build was and they were named as a separate order in 1835. The first plesiosaurian genus, the eponymous ''Plesiosaurus'', was named in 1821. Since then, more than a hundred valid species have been described. In the early twenty-first cent ...
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Toarcian
The Toarcian is, in the International Commission on Stratigraphy, ICS' geologic timescale, an age (geology), age and stage (stratigraphy), stage in the Early Jurassic, Early or Lower Jurassic. It spans the time between 184.2 Megaannum, Ma (million years ago) and 174.7 ±0.8 Ma. It follows the Pliensbachian and is followed by the Aalenian. The Toarcian Age began with the Toarcian Oceanic Anoxic Event, a major anoxic event associated with marine extinctions and increased global temperatures that sets its fossil faunas apart from the previous Pliensbachian age. It is believed to have ended with a global cooling event known as the Comptum Cooling Event, although whether it represented a worldwide event is controversial. Stratigraphic definitions The Toarcian takes its name from the city of Thouars, just south of Saumur in the Loire Valley of France. The stage was introduced by French palaeontologist Alcide d'Orbigny in 1842, after examining stratum, rock strata of this age in a quar ...
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Age (geology)
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardised international units of geological time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precis ...
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Posidonia Shale
The Posidonia Shale (, also called Schistes Bitumineux in Luxembourg) geologically known as the Sachrang Formation, is an Early Jurassic (Early to Late Toarcian) geological formation in Germany, northern Switzerland, northwestern Austria, southern Luxembourg and the Netherlands, including exceptionally well-preserved complete skeletons of fossil marine fish and reptiles. The ''Posidonienschiefer'', the German translation, takes its name from the ubiquitous fossils of the oyster-related bivalve ''" Posidonia bronni"'' (synonym of '' Bositra buchii'' and '' Steinmannia bronni'') that characterize the mollusk faunal component of the formation. The name Posidonia Shale has been used for more than a century, until revisions in 2016 proposed the Sachrang Formation as new name for the Germanic unit, in a same way Altmühltal Formation is the official name of the Solnhofen Limestone. The Posidonia Shales where stablished as a valid vulgar name for this regions lower Toarcian Black Shales ...
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Plesiosaurus
''Plesiosaurus'' (Greek: ' ('), near to + ' ('), lizard) is a genus of extinct, large marine sauropterygian reptile that lived during the Early Jurassic. It is known by nearly complete skeletons from the Lias of England. It is distinguishable by its small head, long and slender neck, broad turtle-like body, a short tail, and two pairs of large, elongated paddles. It lends its name to the order Plesiosauria, of which it is an early, but fairly typical member. It contains only one species, the type, ''Plesiosaurus dolichodeirus''. Other species once assigned to this genus, including ''P. brachypterygius'', ''P. guilielmiimperatoris'', and ''P. tournemirensis'' have been reassigned to new genera, such as '' Hydrorion'', '' Seeleyosaurus'' and '' Microcleidus''. Discovery The first complete skeleton of ''Plesiosaurus'' was discovered by early paleontologist and fossil hunter Mary Anning in Sinemurian (Early Jurassic)-age rocks of the lower Lias Group in December 1823 near Lyme R ...
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