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Platypterygius Sachicarum
''Platypterygius'' is a historically paraphyletic genus of platypterygiine ichthyosaur from the Cretaceous period. It was historically used as a wastebasket taxon, and most species within ''Platypterygius'' likely are undiagnostic at the genus or species level, or represent distinct genera, even being argued as invalid. While fossils referred to ''Platypterygius'' have been found throughout different continents, the holotype specimen was found in Germany. Description As ''Platypterygius'' contains multiple species not especially close to each other, little can be said in terms of shared characteristics. According to an analysis by Fischer (2012), all anatomical features used to unify ''Platypterygius'' species are either not actually present in each species, or much more widespread among unrelated ophthalmosaurs. Generally, species referred to this genus were large bodied macropredators based on their robust dentition. This is also supported by ''P. australis'' having been foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sternberg Museum Of Natural History
Fort Hays State University (FHSU) is a public university in Hays, Kansas. It is the fourth-largest of the six state universities governed by the Kansas Board of Regents, with a total enrollment of approximately 15,100 students. History FHSU was founded in 1902 as the Western Branch of Kansas State Normal School, which is now known as Emporia State University. The institution was originally located on the grounds of Fort Hays, a frontier military outpost that was closed in 1889. The university served the early settlers' needs for educational facilities in the new region. The first building closer to Hays was completed in 1904, at which time the university moved to its present location. The modern campus is still located on a portion of the former military reservation from the fort. FHSU was first to be founded as an agricultural based school but was then determined to be a normal school. The normal school was supposed to be supported in part by the agricultural experiment stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War 2
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, massa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyhytysuka
''Kyhytysuka'' () is an extinct genus of ophthalmosaurian ichthyosaur from Early Cretaceous Colombia. The animal was previously assigned to the genus ''Platypterygius'', but given its own genus in 2021. ''Kyhytysuka'' was a mid-sized ophthalmosaurian with heterodont dentition and several adaptations suggesting that it was a macropredatory vertebrate hunter living in shallow waters. It contains a single species, ''Kyhytysuka sachicarum''. Discovery and naming The first definitive ichthyosaur remains in Colombia were discovered in the 1970s in the Paja Formation of Villa de Leyva. This fossil, a three dimensionally preserved skull discovered by local Jorge Cárdenas, was described as a new species of ''Platypterygius'', ''P. sachicarum'', by María Páramo-Fonseca in 1997. However the taxon went largely ignored in the following years or was unofficially considered to be synonymous with the Argentinian ''Platypterygius hauthali''. Further research on ichthyosaurs since its discovery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senior Synonym
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia leva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plutoniosaurus
''Plutoniosaurus'' is an extinct genus of ophthalmosaurid ichthyosaur from the Early Cretaceous (late Hauterivian) of the vicinity of Ulyanovsk, European Russia. Taxonomy The holotype is UPM 2/740, a partial skeleton. ''Plutoniosaurus'' is possibly the same species as the nearly coeval ''Simbirskiasaurus''. Zverkov and Efimov (2019) recover ''Plutoniosaurus'' in the polytomy with the ''Platypterygius'' type species and ''Leninia ''Leninia'' is an extinct genus of basal ophthalmosaurine ichthyosaur known from the late Early Cretaceous (lower Aptian stage) of western Russia. ''Leninia'' was first named by Valentin Fischer, Maxim S. Arkhangelsky, Gleb N. Uspensky, Ilya M. ...''.Nikolay G. Zverkov; Vladimir M. Efimov (2019). Revision of Undorosaurus, a mysterious Late Jurassic ichthyosaur of the Boreal Realm. Journal of Systematic Palaeontology. in press. doi:10.1080/14772019.2018.1515793. Phylogeny The following cladogram shows a possible phylogenetic position of ''Pluton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoological Journal Of The Linnean Society
The ''Zoological Journal of the Linnean Society'' is a monthly peer-reviewed scientific journal covering zoology published by Oxford University Press on behalf of the Linnean Society. The editor-in-chief is Maarten Christenhusz (Linnean Society). It was established in 1856 as the ''Journal of the Proceedings of the Linnean Society of London. Zoology'' and renamed ''Journal of the Linnean Society of London, Zoology'' in 1866. It obtained its current title in 1969. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.286. References External links * Zoology journals Linnean Society of London Monthly journals Academic journa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pervushovisaurus
''Pervushovisaurus'' is a genus of platypterygiine ichthyosaur from the Late Cretaceous ( Cenomanian) of the Saratov region in western Russia, the La Penthiève Beds of France and the Cambridge area of the UK. History It was originally described as a subgenus of ''Platypterygius'', but later work showed that it was sufficiently distinct from the type species of ''Platypterygius'', ''P. platydactylus'', to be elevated to full generic rank. The type species of ''Pervushovisaurus'', ''P. bannovkensis'', is known only from the holotype, SSU 104a/24, a partial skull. In 2016, an additional species of ''Platypterygius'' from England and France, ''P. campylodon'', was also referred to ''Pervushovisaurus'' after previously being allied with ''Ichthyosaurus'' in 1846. A previous Russian species of ''Platypterygius'', ''"P." kiprianoffi'', was also assigned to ''P. campylodon''. A specimen of ''P. campylodon'' was found in the La Penthiève Beds of France France (), offic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyhytysuka Sachicarum
''Kyhytysuka'' () is an extinct genus of ophthalmosaurian ichthyosaur from Early Cretaceous Colombia. The animal was previously assigned to the genus ''Platypterygius'', but given its own genus in 2021. ''Kyhytysuka'' was a mid-sized ophthalmosaurian with heterodont dentition and several adaptations suggesting that it was a macropredatory vertebrate hunter living in shallow waters. It contains a single species, ''Kyhytysuka sachicarum''. Discovery and naming The first definitive ichthyosaur remains in Colombia were discovered in the 1970s in the Paja Formation of Villa de Leyva. This fossil, a three dimensionally preserved skull discovered by local Jorge Cárdenas, was described as a new species of ''Platypterygius'', ''P. sachicarum'', by María Páramo-Fonseca in 1997. However the taxon went largely ignored in the following years or was unofficially considered to be synonymous with the Argentinian ''Platypterygius hauthali''. Further research on ichthyosaurs since its disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maiaspondylus
''Maiaspondylus'' is an extinct genus of platypterygiine ophthalmosaurid ichthyosaurs known from Northwest Territories of Canada, the Cambridge Greensand of England and the Voronezh Region of Russia. Description ''Maiaspondylus'' is known from the holotype UALVP 45635, a disarticulated but nearly complete skeleton preserved in three dimensions and from the referred materials UALVP 45639, two articulated, partially preserved embryos and eight articulated vertebrae of an adult, UALVP 45640, 14 articulated vertebrae of a juvenile, UALVP 45640, 12 articulated vertebrae, UALVP 45642, a partial snout and left dentaries with teeth and UALVP 45643, a fragmentary snout. All specimens were collected at Hay River from the Loon River Formation, dating to the early Albian stage of the Early Cretaceous, about 110 million years ago. All ''Maiaspondylus'' specimens were originally referred to ''Platypterygius''. However, all recent cladistic analyses foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junior Synonym
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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