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Dicynodon BW
''Dicynodon'' ("two dog-teeth") is a genus of dicynodont therapsid that flourished during the Upper Permian period. Like all dicynodonts, it was herbivorous animal. This reptile was toothless, except for prominent tusks, hence the name. It probably cropped vegetation with a horny beak, much like a tortoise, while the tusks may have been used for digging up roots and tubers. Many species of ''Dicynodon'' have been named, and the genus is considered a wastebasket taxon. A 2011 study of the genus found most of the species to represent a paraphyletic grouping, with the only valid members of ''Dicynodon'' being ''D. lacerticeps'' and ''D. huenei''. A 2019 study named a new species ''D. angielczyki'', but simultaneously transferred ''D. huenei'' to the genus '' Daptocephalus''. Description ''Dicynodon'' was a medium-sized and advanced member of the Dicynodont group. It had an average length of , although size differed among species. Its fossil remains have been found in sediments of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Changhsingian
In the geologic time scale, the Changhsingian or Changxingian is the latest age or uppermost stage of the Permian. It is also the upper or latest of two subdivisions of the Lopingian Epoch or Series. The Changhsingian lasted from to 251.902 million years ago (Ma). It was preceded by the Wuchiapingian and followed by the Induan. The greatest mass extinction in the Phanerozoic eon, the Permian–Triassic extinction event, occurred during this age. The extinction rate peaked about a million years before the end of this stage. Stratigraphic definitions The Changhsingian is named after Changxing () in northern Zhejiang, China. The stage was named for the Changhsing Limestone. The name was first used for a stage in 1970; 1973: ''Permian stages names'', in: : ''The Permian and Triassic systems and their mutual boundary'', Canadian Society of Petroleum Geologists Memoir 2, pp 522–548. and was anchored in the international timescale in 1981.; 2006: ''The Global Boundary Stratot ... [...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 l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinanomodon Gilli
''Dinanomodon'' is a genus of dicynodont from Late Permian (Changhsingian) of the ''Lystrosaurus'' Assemblage Zone, Katberg Formation, and ''Cistecephalus'' Assemblage Zone, Balfour Formation Beaufort Group, Karoo Basin of South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ....Kammerer C. F., Angielczyk K. D. 2009. A proposed higher taxonomy of anomodont therapsids. ''Zootaxa'' 2018, 1–24. References Dicynodonts Changhsingian genus first appearances Early Triassic extinctions Lopingian synapsids of Africa Permian South Africa Triassic South Africa Fossils of South Africa Beaufort Group Fossil taxa described in 1938 Taxa named by Robert Broom Anomodont genera {{anomodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vivaxosaurus Trautscholdi
''Vivaxosaurus'' is a genus of dicynodont from Late Permian (Changhsingian) of Russia. It has been found at Sokolki on the Northern Dvina River near Kotlas in Arkhangelsk Oblast, Russia. It lived during the latest Permian, and was a contemporary of ''Inostrancevia'', ''Scutosaurus'' and '' Dvinia''. Like all members of the genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ..., this animal was toothless, except for prominent tusks, and probably cropped vegetation with a horny beak, like a tortoise. History The contemporary species ''Dicynodon amalitzkii'' Sushkin, 1926 is closely related (Angielczyk and Kurkin 2003a, 2003b), although according to Lucas 2005, ''Dicynodon trautscholdi'', ''Dicynodon amalitzkii'', ''Elph borealis'', and ''Vivaxosaurus permirus'' are all synon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usili Formation
The Usili Formation is a Late Permian geologic formation in Tanzania. It preserves fossils of many terrestrial vertebrates from the Permian, including temnospondyls, pareiasaurs, therapsids and the archosauromorph ''Aenigmastropheus''. History of study One of the first to study rocks of the Usili Formation was British geologist G. M. Stockley. In 1932, Stockley explored the geology of the Ruhuhu Basin in Tanzania. He called a series of layers dating from the Late Carboniferous to the Middle Triassic of the Songea Series and divided it into eight units labelled K1-K8. Stockley was also the first to describe fossils from these rocks, naming an older layer the "Lower Bone Bed" and a younger layer the "Upper Bone Bed". In 1957, paleontologist Alan J. Charig described many more fossils from the upper bone beds in his Ph.D. thesis for the University of Cambridge.Charig, A. J. (1957). New Triassic archosaurs from Tanganyika, including ''Mandasuchus'' and ''Teleocrater'': Dissertati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peramodon Amalitzkii
''Peramodon'' is an extinct genus of dicynodont therapsid from the Late Permian ''Scutosaurus karpinskii'' Zone of the Salarevo Formation of Russia. The type species, ''P. amalitzkii'', was first named in 1926 as ''Dicynodon ''Dicynodon'' ("two dog-teeth") is a genus of dicynodont therapsid that flourished during the Upper Permian period. Like all dicynodonts, it was herbivorous animal. This reptile was toothless, except for prominent tusks, hence the name. It probab ... amalitzkii''. References Dicynodonts Lopingian synapsids of Europe Fossils of Russia Fossil taxa described in 2011 Anomodont genera {{anomodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sintocephalus Alticeps
''Sintocephalus'' is an extinct genus of dicynodont therapsid from the Late Permian of South Africa. Fossils are known from the ''Cistecephalus'' Assemblage Zone of the Beaufort Group. The type species of ''Sintocephalus'', ''S. alticeps'', was first named in 1913 as a species of ''Dicynodon''. The genus was erected in 1934, but in subsequent years its species were often regarded as members of other dicynodont genera. Description Compared to other dicynodonts, ''Sintocephalus'' is distinguished by the thickness and upward curve of its temporal arch behind the eyes. It also has a sharply sloped snout, large eye sockets, and tusks that are positioned forward in the upper jaw. The intertemporal region at the top of the skull between the two temporal fenestrae is very wide. History The type species ''S. alticeps'' was first named by paleontologists Robert Broom and Sidney H. Haughton in 1913. Broom and Haughton regarded it as a species of ''Dicynodon'', calling it ''D. alticeps''. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidney H
Sidney may refer to: People * Sidney (surname), English surname * Sidney (given name), including a list of people with the given name * Sidney (footballer, born 1972), full name Sidney da Silva Souza, Brazilian football defensive midfielder * Sidney (footballer, born 1979), full name Sidney Santos de Brito, Brazilian football defender Characters *Sidney Prescott, main character from the ''Scream'' horror trilogy * Sidney (''Ice Age''), a ground sloth in the ''Ice Age'' film series * Sidney (''Pokémon''), a character of the ''Pokémon'' universe *Sidney, one of ''The Bash Street Kids'' * Sidney Jenkins, a character in the British teenage drama '' Skins'' *Sidney Hever, Edward's fireman from ''The Railway Series'' and the TV series ''Thomas and Friends'' *Sidney, a diesel engine from the TV series ''Thomas and Friends'' *Sidney Freedman, a recurring character in the TV series ''M*A*S*H'' Places Canada *Sidney, British Columbia *Sidney, Manitoba United Kingdom * Sidney Sussex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oudenodon Bainii
''Oudenodon'' is an extinct genus of dicynodont. It was common throughout southern Africa during the Late Permian. Several species of ''Oudenodon'' are known. Both ''O. bainii'', the type species, and ''O. grandis'' are known from South Africa. Specimens of ''O. luangwensis'' have been found from Zambia. One species, ''O. sakamenensis'', is the only Permian therapsid yet known from Madagascar.Mazin, J. M. and King, G. M. (1991). The first dicynodont from the Late Permian of Malagasy. ''Palaeontology'' 34:837–842. It is the type genus of the family Oudenodontidae, which includes members such as ''Tropidostoma''. See also * List of therapsids References The main groups of non-mammalian synapsids at Mikko's Phylogeny Archive External links ''Oudenodon''in the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lystrosaurus Declivis
''Lystrosaurus'' (; 'shovel lizard'; proper Greek is λίστρον ''lístron'' ‘tool for leveling or smoothing, shovel, spade, hoe’) is an extinct genus of herbivorous dicynodont therapsids from the late Permian and Early Triassic epochs (around 250 million years ago). It lived in what is now Antarctica, India, China, Mongolia, European Russia and South Africa. Four to six species are currently recognized, although from the 1930s to 1970s the number of species was thought to be much higher. They ranged in size from that of a small dog to 8 feet (2.5 meters) long. As a dicynodont, ''Lystrosaurus'' had only two teeth (a pair of tusk-like canines), and is thought to have had a horny beak that was used for biting off pieces of vegetation. ''Lystrosaurus'' was a heavily built, herbivorous animal, approximately the size of a pig. The structure of its shoulders and hip joints suggests that ''Lystrosaurus'' moved with a semi-sprawling gait. The forelimbs were even more robust tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lystrosaurus Assemblage Zone
The ''Lystrosaurus'' Assemblage Zone is a tetrapod assemblage zone or biozone which correlates to the upper Adelaide and lower Tarkastad Subgroups of the Beaufort Group, a fossiliferous and geologically important geological Group of the Karoo Supergroup in South Africa. This biozone has outcrops in the south central Eastern Cape (Middelburg, Queenstown, Aliwal North, Nieu-Bethesda) and in the southern and northeastern Free State (Bethulie, Gariep Dam, Mthatha, Harrismith). The ''Lystrosaurus'' Assemblage Zone is one of eight biozones found in the Beaufort Group, and is considered to be Early Triassic in age. The name of the biozone refers to ''Lystrosaurus'', a small to medium-sized dicynodont therapsid. It is characterized by the appearance of further ''Lystrosaurus'' subspecies which are confined to this biozone. '' Lystrosaurus maccaigi'' and '' Lystrosaurus curvatus'' are the only two species found outside the ''Lystrosaurus'' Assemblage Zone in Upper Permian deposits o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
