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1838 In Paleontology
Plesiosaurs New taxa Synapsids Non-mammalian {, class="wikitable sortable" align="center" width="100%" , - ! Name ! Status ! Authors ! Age ! Unit ! Location ! width="33%" class="unsortable" , Notes ! class="unsortable", Images , - , ''Brithopus'' , ''Nomen dubium'' , Kutorga , Lopingian, Late Permian , , , A member of Dinocephalia. , rowspan="3", , - , ''Orthopus'' , ''Nomen dubium'' , Kutorga , Late Permian , , , A member of Dinocephalia. , - , ''Syodon'' , Valid , Kutorga , Guadalupian, Middle Permian , , {{Flag, Russia , A member of Dinocephalia. , - References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ischyrodon
''Ischyrodon'' is a dubious genus of large, carnivorous marine reptile belonging to the Pliosauroidea, a clade of short-necked plesiosaurs and it is known from the Middle Jurassic (Callovian) of Wölflinswil, Switzerland. The type species is ''I. meriani'',von Meyer H. (1838). Mittheilungen, an Prof. Bronn gerichtet. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde. ''Jahrgang'' 1838:413-41 and was previously listed as a synonym of ''Liopleurodon ferox''.Tarlo LB. (1960). A review of the Upper Jurassic pliosaurs. ''Bulletin of the British Museum (Natural History), Geology, London'' 4(5):145-189 ''Ischyrodon'' was named in 1838 and described in 1856 by Hermann von Meyer. Lambert Beverly Tarlo noted the possibility of it pertaining to ''Liopleurodon'' in 1960. A 2022 study by Daniel Madzia and colleagues noted that while the tooth likely came from ''Liopleurodon'' or something similar, there was too little information available to make a confident a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brithopus
''Brithopus'' is an extinct genus of dinocephalian therapsids. It contains a single species, ''Brithopus priscus'', known from fragmentary remains found in the Copper Sandstones near Isheevo, Russia. Description ''Brithopus'' was fairly large, reaching a length of 2.5–3 m (8–10 ft). The skull was similar to ''Titanophoneus'', but more massive and heavily built.Olson, E.C. (1962). " Late Permian terrestrial vertebrates, U.S.A. and U.S.S.R." ''Transactions of the American Philosophical Society'', New Series, 52: 1–224. Classification ''B. priscus'' was first named in 1838 and was traditionally classified in the Anteosauria, a group of carnivorous dinocephalians. ''Brithopus'' served as the basis for the family Brithopodidae, which once included many anteosaurian species. Because it is based on fragmentary material, ''Brithopus'' is regarded as a ''nomen dubium'' by some researchers. ''Brithopus'' was later considered a possible estemmenosuchid,Kammerer, C. F. 2010. Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Dubium
In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a specimen belongs to that group or not. This may happen if the original type series (i. e. holotype, isotype, syntype or paratype) is lost or destroyed. The zoological and botanical codes allow for a new type specimen, or neotype, to be chosen in this case. A name may also be considered a ''nomen dubium'' if its name-bearing type is fragmentary or lacking important diagnostic features (this is often the case for species known only as fossils). To preserve stability of names, the ''International Code of Zoological Nomenclature'' allows a new type specimen, or neotype, to be chosen for a ''nomen dubium'' in this case. 75.5. Replacement of unidentifiable name-bearing type by a neotype. When an author considers that the taxonomic identity of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lopingian
The Lopingian is the uppermost series/last epoch of the Permian. It is the last epoch of the Paleozoic. The Lopingian was preceded by the Guadalupian and followed by the Early Triassic. The Lopingian is often synonymous with the informal terms late Permian or upper Permian. The name was introduced by Amadeus William Grabau in 1931 and derives from Leping, Jiangxi in China. It consists of two stages/ ages. The earlier is the Wuchiapingian and the later is the Changhsingian. The International Chronostratigraphic Chart (v2018/07) provides a numerical age of 259.1 ±0.5 Ma. If a Global Boundary Stratotype Section and Point (GSSP) has been approved, the lower boundary of the earliest stage determines numerical age of an epoch. The GSSP for the Wuchiapingian has a numerical age of 259.8 ± 0.4 Ma. Evidence from Milankovitch cycles suggests that the length of an Earth day during this epoch was approximately 22 hours. The Lopingian ended with the Permian–Triassic extinction event. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinocephalia
Dinocephalians (terrible heads) are a clade of large-bodied early therapsids that flourished in the Early and Middle Permian between 279.5 and 260 million years ago (Ma), but became extinct during the Capitanian mass extinction event. Dinocephalians included herbivorous, carnivorous, and omnivorous forms. Many species had thickened skulls with many knobs and bony projections. Dinocephalians were the first non-mammalian therapsids to be scientifically described and their fossils are known from Russia, China, Brazil, South Africa, Zimbabwe, and Tanzania. Description Apart from the Biarmosuchians, the dinocephalians are the least advanced therapsids, although still uniquely specialised in their own way. They retain a number of primitive characteristics (e.g. no secondary palate, small dentary) shared with their pelycosaur ancestors, although they are also more advanced in possessing therapsid adaptations like the expansion of the ilium and more erect limbs. They include carni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brithopus Priscus1DB
''Brithopus'' is an extinct genus of dinocephalian therapsids. It contains a single species, ''Brithopus priscus'', known from fragmentary remains found in the Copper Sandstones near Isheevo, Russia. Description ''Brithopus'' was fairly large, reaching a length of 2.5–3 m (8–10 ft). The skull was similar to ''Titanophoneus'', but more massive and heavily built.Olson, E.C. (1962). " Late Permian terrestrial vertebrates, U.S.A. and U.S.S.R." ''Transactions of the American Philosophical Society'', New Series, 52: 1–224. Classification ''B. priscus'' was first named in 1838 and was traditionally classified in the Anteosauria, a group of carnivorous dinocephalians. ''Brithopus'' served as the basis for the family Brithopodidae, which once included many anteosaurian species. Because it is based on fragmentary material, ''Brithopus'' is regarded as a ''nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orthopus
''Orthopus'' is an extinct genus of non-mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...ian synapsids. It is based on a partial humerus that closely resembles ''Estemmenosuchus'', in the limited comparisons possible. See also * List of therapsids References * The main groups of non-mammalian synapsidsat Mikko's Phylogeny Archive Prehistoric synapsid genera Permian animals of Europe Permian animals of Asia Fossil taxa described in 1838 {{paleo-therapsid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syodon
''Syodon'' is an extinct genus of dinocephalian therapsids that lived approximately 267-260 million years ago during the middle Permian period of the Paleozoic era. These therapsids, located in Russia were initially believed to be true mammals. ''Syodon'' was first named by Stephan Kutorga in 1838.Kutorga, S. S. 1838. ''Beitrag zur Kenntniss der organischen U ̈ berreste des Kupfersandsteins am Westlichen Abhange des Urals''. St Petersburg. Gretsch, 38 pp. The fossils of these synapsids were first discovered in the Molotov Province region of Russia in limestone beds with a high content of copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis .... However, scientists believe that these organisms likely come from higher rock beds due to increased specializations in their morphol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guadalupian
The Guadalupian is the second and middle series/epoch of the Permian. The Guadalupian was preceded by the Cisuralian and followed by the Lopingian. It is named after the Guadalupe Mountains of New Mexico and Texas, and dates between 272.95 ± 0.5 – 259.1 ± 0.4 Mya. The series saw the rise of the therapsids, a minor extinction event called Olson's Extinction and a significant mass extinction called the end-Capitanian extinction event. The Guadalupian was previously known as the Middle Permian. Name and background The Guadalupian is the second and middle series or epoch of the Permian. Previously called Middle Permian, the name of this epoch is part of a revision of Permian stratigraphy for standard global correlation. The name "Guadalupian" was first proposed in the early 1900s, and approved by the International Subcommission on Permian Stratigraphy in 1996. References to the Middle Permian still exist. The Guadalupian was preceded by the Cisuralian and followed by the Lop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1830s In Paleontology
Year 183 ( CLXXXIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Victorinus (or, less frequently, year 936 ''Ab urbe condita''). The denomination 183 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * An assassination attempt on Emperor Commodus by members of the Senate fails. Births * January 26 – Lady Zhen, wife of the Cao Wei state Emperor Cao Pi (d. 221) * Hu Zong, Chinese general, official and poet of the Eastern Wu state (d. 242) * Liu Zan (Zhengming), Chinese general of the Eastern Wu state (d. 255) * Lu Xun Zhou Shuren (25 September 1881 – 19 October 1936), better known by his pen name Lu Xun (or Lu Sun; ; Wade–Giles: Lu Hsün), was a Chinese writer, essayist, poet, and literary critic. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
