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Plicatodus
''Plicatodus'' is a prehistoric cartilaginous fish in the family Xenacanthidae that lived in Europe during the late Carboniferous and Early Permian Periods. It was described by Oliver Hampe in 1995, and the type species is ''Plicatodus jordani''. The type locality for this genus is the Saar-Nahe basin.Plicatodus jordani n. g., n. sp., a new xenacanthid shark from the Lower Permian of Europe (Saar-Nahe Basin, Germany) by Oliver Hampe, 1995. Description ''Plicatodus'' fossil ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenacanthidae
Xenacanthida (or Xenacanthiformes) is an order or superorder of extinct shark-like chondrichthyans (cartilaginous fish) known from the Carboniferous to Triassic. They were native to freshwater, marginal marine and shallow marine habitats. Some xenacanths may have grown to lengths of . Most xenacanths died out at the end of the Permian in the End-Permian Mass Extinction, with only a few forms surviving into the Triassic. Description The foundation of the tooth is prolonged lingually with a circlet button and a basal tubercle on the oral and aboral surfaces individually. The family Xenacanthidae consists of five genera: ''Xenacanthus'', '' Triodus'', '' Plicatodus'', '' Mooreodontus'' and '' Wurdigneria''; all of these are distinguished by cross sections of the points, crown center, length of the median edge, type of vertical cristae, and microscopic anatomy. Xenacanths are divided into two groups based on dental characteristics. Group one has tricuspid crowns containing two sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthacanthus
''Orthacanthus'' is an extinct genus of fresh-water xenacanthiform cartilaginous fish, named by Louis Agassiz in 1843, ranging from the Upper Carboniferous into the Lower Permian. ''Orthacanthus'' had a nektobenthic life habitat, with a carnivorous diet. Multiple authors have also discovered evidence of cannibalism in the diet of ''Orthacanthus'' and of "filial cannibalism" where adult ''Orthacanthus'' preyed upon juvenile ''Orthacanthus.'' Synonyms of the genus ''Orthacanthus'' are ''Dittodus'' Owen, 1867, ''Didymodus'' Cope, 1883, ''Diplodus'' Agassiz, 1843, ''Chilodus'' Giebel, 1848 (preoccupied by ''Chilodus'' Müller & Troschel, 1844). During the Late Carboniferous-Early Permian, ''Orthacanthus'' was an apex predator of freshwater swamps and bayous in Europe and North America. Mature ''Orthacanthus'' reached nearly 3 meters (10 feet) in length. ''Orthacanthus'' teeth have a minimum of three cusps, two principal cusps, and an intermediate cusp, where the principal cusps are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odernheim Formation
The Odernheim Formation is a geologic formation in Germany. It preserves fossils dating back to the Carboniferous and Permian periods. See also * List of fossiliferous stratigraphic units in Germany See also * Lists of fossiliferous stratigraphic units in Europe * Geology of Germany References * {{DEFAULTSORT:Fossiliferous stratigraphic units in Germany Germany Germany geology-related lists ... References External links * Carboniferous System of Europe Carboniferous Germany Permian System of Europe Permian Germany Paleontology in Germany Geologic formations of Germany {{Carboniferous-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian Cartilaginous Fish
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the sixth and last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleobiology Database
The Paleobiology Database (PBDB) is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database originated in the NCEAS-funded Phanerozoic Marine Paleofaunal Database initiative, which operated from August 1998 through August 2000. From 2000 to 2015, PBDB received funding from the National Science Foundation. PBDB also received support form the Australian Research Council. From 2000 to 2010 it was housed at the National Center for Ecological Analysis and Synthesis, a cross-disciplinary research center within the University of California, Santa Barbara. It is currently housed at University of Wisconsin-Madison and overseen by an international committee of major data contributors. The Paleobiology Database works closely with the Neotoma Paleoecology Database, which has a similar intellectual history, but has focused on the Quaternary (with an emphasis on the late Pleistocene and Holoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Austria
Lower Austria ( , , abbreviated LA or NÖ) is one of the nine states of Austria, located in the northeastern corner of the country. Major cities are Amstetten, Lower Austria, Amstetten, Krems an der Donau, Wiener Neustadt and Sankt Pölten, which has been the capital city, capital of Lower Austria since 1986, replacing Vienna, which became a separate state in 1921. With a land area of and a population of 1.7 million people, Lower Austria is the largest and second-most-populous state in Austria (after Vienna). Geography With a land area of situated east of Upper Austria, Lower Austria is the country's largest state. Lower Austria derives its name from its downriver location on the river Enns (river), Enns, which flows from the west to the east. Lower Austria has an international border, long, with the Czech Republic (South Bohemian Region, South Bohemia and South Moravian Region, South Moravia) and Slovakia (Bratislava Region, Bratislava and Trnava Regions). The state has the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gzhelian
The Gzhelian ( ) is an age in the ICS geologic time scale or a stage in the stratigraphic column. It is the youngest stage of the Pennsylvanian, the youngest subsystem of the Carboniferous. The Gzhelian lasted from to Ma. It follows the Kasimovian age/stage and is followed by the Asselian age/stage, the oldest subdivision of the Permian system. The Gzhelian is more or less coeval with the Stephanian Stage of the regional stratigraphy of Europe. Name and definition The Gzhelian is named after the Russian village of Gzhel (), nearby Ramenskoye, not far from Moscow. The name and type locality were defined by Sergei Nikitin (1851–1909) in 1890. The base of the Gzhelian is at the first appearance of the Fusulinida genera '' Daixina'', '' Jigulites'' and '' Rugosofusulina'', or at the first appearance of the conodont ''Streptognathodus zethus''. The top of the stage (the base of the Permian system) is at the first appearance of the conodont ''Streptognathodus isolat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bohemia
Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historically it could also refer to a wider area consisting of the Lands of the Bohemian Crown ruled by the List of Bohemian monarchs, Bohemian kings, including Moravia and Czech Silesia, in which case the smaller region is referred to as Bohemia Proper as a means of distinction. Bohemia became a part of Great Moravia, and then an independent principality, which became a Kingdom of Bohemia, kingdom in the Holy Roman Empire. This subsequently became a part of the Habsburg monarchy and the Austrian Empire. After World War I and the establishment of an History of Czechoslovakia (1918–1938), independent Czechoslovak state, the whole of Bohemia became a part of Czechoslovakia, defying claims of the German-speaking inhabitants that regions with German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rakovnik Basin
Rakovnik may refer to places: *Rakovník Rakovník (, ) is a town in the Central Bohemian Region of the Czech Republic. It has about 16,000 inhabitants. The historic town centre is well preserved and is protected as an urban monument zone. Administrative division Rakovník consists o ..., a town in the Czech Republic * Rakovnik, Medvode, a settlement in Slovenia * Rakovnik, Šentjernej, a settlement in Slovenia * Rakovnik pri Birčni Vasi, a settlement in Slovenia * Rakovnik pri Šentrupertu, a settlement in Slovenia {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slany Formation
Slaný or Slany (; feminine form Slaná) is a Czech and Slovak surname. It is derived from the Czech–Slovak word ''slaný'' for "salty." It may be a metonymic occupational name for a producer or seller of salt. Notable people with the name include: * Hans Erich Slany (1926–2013), German designer * John Slany (died 1632), English merchant and ship builder See also * Slana (other) * Slane (other) *Slaney Slaney is a surname. Notable people with this surname include: * Geoffrey Slaney (1922–2016), British surgeon and academic * Ivor Slaney (1921–1998), England musical composer and conductor * John Slaney (born 1972), Canadian ice hockey player ... References {{surname Czech-language surnames Slovak-language surnames Occupational surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasimovian
The Kasimovian is a geochronologic age or chronostratigraphic stage in the ICS geologic timescale. It is the third stage in the Pennsylvanian (late Carboniferous), lasting from to Ma.; 2004: ''A Geologic Time Scale 2004'', Cambridge University Press. The Kasimovian Stage follows the Moscovian and is followed by the Gzhelian. The Kasimovian saw an extinction event which occurred around 305 mya, referred to as the Carboniferous Rainforest Collapse. It roughly corresponds to the Missourian in North American geochronology and the Stephanian in western European geochronology. Name and definition The Kasimovian is named after the Russian city of Kasimov. The stage was split from the Moscovian in 1926 by Boris Dan'shin (1891-1941), who gave it the name ''Teguliferina horizon''. The name was posthumously changed to ''Kasimov horizon'' by Dan'shin in 1947. The name Kasimovian was introduced by Georgy Teodorovich in 1949. The base of the Kasimovian Stage is at the base of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
