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Naobaogou Formation
The Naobaogou Formation is a geological formation in the Daqing Mountains of China. It is likely of Lopingian age. It consists of three rhythms of sediment, labelled members I-III primarily of purple siltstone Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, p ..., but each with a thick basal conglomerate bed. It is notable for its fossil content, producing one of the most diverse Late Permian vertebrate faunas outside Russia and South Africa. Vertebrate fauna References {{reflist Permian System of Asia Permian China Lopingian geology ... [...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] |
Elginia
''Elginia'' is an extinct genus of pareiasaurid known from the Late Permian of Scotland and China. It was named for the area around Elgin in Scotland, which has yielded many fossils referred to as the Elgin Reptiles. Discovery The type species of ''Elginia, Elginia mirabilis,'' was first described in 1893 by E.T. Newton, after fellow geologists John Horne and Archibald Geikie informed him of several unusual specimens stored at the Elgin Museum in Scotland. The specimens were collected several years earlier from the coarse sandstones of the nearby Cutties Hillock Quarry. The quarry’s sandstone, the Cutties Hillock Sandstone Formation, is often (but not always) considered equivalent to the otherwise fossil-poor Hopeman Sandstone Formation of broader Scottish geology. Tetrapod remains occupy a narrow section of the sandstone, lying above a pebbly layer. The sandstones of Cutties Hillock were deposited at the very end of the Permian Period, based on a dicynodont fauna simi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicynodontoid
Dicynodontoidea is an infraorder of dicynodont therapsids that includes the famous dicynodont ''Dicynodon'', ''Lystrosaurus'' and the Triassic Kannemeyeriiformes, as well as numerous other closely related species. The name was coined by American paleontologist Everett C. Olson in 1941 as an infraorder, despite using the typical "-oidea" suffix of superfamilies, and was later redefined under a phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ... context in 2009 by paleontologist Christian F. Kammerer. References Dicynodonts Permian synapsids Triassic synapsids Lopingian first appearances Late Triassic extinctions {{anomodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turfanodon
''Turfanodon'' is an extinct genus of dicynodont therapsid from the Late Permian Sunan, Guodikeng, and Naobaogou Formations of China. The holotype of ''T. bogdaensis'' was discovered between 1963-1964 and was originally named in 1973 by A. Sun with the type species ''Turfanodon bogdaensis'', ''Turfanodon'' was reclassified as a junior synonym of the related ''Dicynodon'' in 1988 by G. M. King. ''T. bogdaensis'' remained a species of ''Dicynodon'' for over two decades before the genus was reinstated in 2011 in a revision of the taxonomy of ''Dicynodon'' by palaeontologist Christian Kammerer. A second species from Inner Mongolia, ''T. jiufengensis'', was named in 2021 by palaeontologist Jun Liu from a nearly complete skeleton and other referred bones. ''Turfanodon'' was a relatively large dicynodont, and similar in appearance to the related '' Daptocephalus'' from South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shiguaignathus
''Shiguaignathus'' is an extinct genus of therocephalian therapsid that lived in what is now China during the Late Permian. It was found in the Naobaogou Formation and is known from a partial skull. It was found to be a basal member of Akidnognathidae. See also * List of synapsids These lists of synapsids collectively include every genus that has ever been included in the clade Synapsida- the mammals and their evolutionary precursors. The lists includes accepted genera along with those now considered invalid, doubtful (''nom ... References Akidnognathids Therocephalia genera Fossil taxa described in 2017 {{Paleo-therapsid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chroniosuchian
Chroniosuchia is a group of tetrapods that lived from the Middle Permian to Late Triassic in what is now Eastern Europe, Kyrgyzstan, China and Germany. Chroniosuchians are often thought to be reptiliomorphs, but some recent phylogenetic analyses suggest instead that they are stem-tetrapods. They were all rather short limbed with a strong tail and elongated snout, somewhat resembling modern crocodiles. The group is traditionally considered to be a suborder or order of labyrinthodonts. Chroniosuchians likely had ecological niches as riverside predators, and may have been outcompeted by semiaquatic true reptiles such as phytosaurs in the late Triassic. Most forms bore a heavy armour of scutes along the back, possibly for protection against land born predators like therapsids, or to strengthen the axial skeleton for terrestrial locomotion. Indeed, femoral microanatomy of ''Chroniosaurus'' suggests that it was amphibious to terrestrial. Description The most distinguishing features of c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laosuchus
''Laosuchus'' is an extinct genus of chroniosuchian known from the Permian-Triassic boundary of Asia. Two species have been named. Discovery ''L. naga'' was found in the Luang Prabang Basin of Northern Laos, part of the Indochina block. The site was first discovered by J. B. H. Counillon in 1896 as part of the Pavie's third Mission. Counillon was tasked with mapping mineral resources for the French colonial empire. ''L. naga'' was discovered during a 2005 expedition to the area, along with remains of dicynodonts. It was later described by Arbez, Sidor, and Steyer in 2018. Its name comes from the Nāga, a snake-like deity that appears in multiple east Asian religions. In 2021 a new species ''L. hun'' was described from the Naobaogou Formation of the Daqing Mountains of Inner Mongolia, China. Description ''Laosuchus naga'' is represented by a single skull and articulated left hemimandible designated as specimen MDS-LPQ 2005-09, stored at the Musée des Dinosaures in Savannakhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jiufengia
''Jiufengia'' is an extinct genus of therocephalian in the family Akidnognathidae. It is known from a single species, ''Jiufengia jiai'', from the Late Permian Naobaogou Formation in China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and .... References {{Taxonbar, from=Q96694289 Therocephalia genera Akidnognathids Eutherocephalians ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Captorhinidae
Captorhinidae (also known as cotylosaurs) is an extinct family of tetrapods, traditionally considered primitive reptiles, known from the late Carboniferous to the Late Permian. They had a cosmopolitan distribution across Pangea. Description Captorhinids are a clade of small to very large lizard-like reptiles that date from the late Carboniferous through the Permian. Their skulls were much stronger than those of their relatives, the Protorothyrididae, and had teeth that were better able to deal with tough plant material. The postcranial skeleton is very similar to that of advanced reptiliomorph amphibians, so much in fact that the amphibian Seymouriamorpha and Diadectomorpha were thought to be reptiles and grouped together in "Cotylosauria" as the first reptiles in the early 20th century. Captorhinids have broad, robust skulls that are generally triangular in shape when seen in dorsal view. The premaxillae are characteristically downturned. The largest captorhinid, the herbivorous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gansurhinus
''Gansurhinus'' is an extinct genus of moradisaurine captorhinid known from the Middle Permian Qingtoushan Formation of the Qilian Mountains and the Late Permian Naobaogou Formation in the Daqing Mountains of China. It was first named by Robert R. Reisz, Jun Liu, Jin-Ling Li and Johannes Müller in 2011 and the 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 specime ... is ''Gansurhinus qingtoushanensis''. A second species, ''Gansurhinus naobaogouensis'', was described in 2023 based on a relatively complete skeleton of an immature individual. References Captorhinids Permian reptiles of Asia Permian China Prehistoric animals of China Fossil taxa described in 2011 Prehistoric reptile genera {{permian-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euchambersia Liuyudongi Lateral
''Euchambersia'' is an extinct genus of therocephalian therapsids that lived during the Late Permian in what is now South Africa and China. The genus contains two species. The type species ''E. mirabilis'' was named by paleontologist Robert Broom in 1931 from a skull missing the lower jaw. A second skull, belonging to a probably immature individual, was later described. In 2022, a second species, ''E. liuyudongi'', was named by Jun Liu and Fernando Abdala from a well-preserved skull. It is a member of the family Akidnognathidae, which historically has also been referred by as the synonymous Euchambersiidae (named after ''Euchambersia''). ''Euchambersia'' was a small and short-snouted therocephalian, possessing large canines as is typical of the group. However, it is notable among therocephalians for possessing ridges on its canines and a large indentation in the side of the skull. It has been proposed that these structures supported a venom delivery mechanism. If this statement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Therocephalia
Therocephalia is an extinct suborder of eutheriodont therapsids (mammals and their close relatives) from the Permian and Triassic. The therocephalians ("beast-heads") are named after their large skulls, which, along with the structure of their teeth, suggest that they were carnivores. Like other non-mammalian synapsids, therocephalians were once described as "mammal-like reptiles". Therocephalia is the group most closely related to the cynodonts, which gave rise to the mammals. This relationship takes evidence in a variety of skeletal features. The fossils of therocephalians are numerous in the Karoo of South Africa, but have also been found in Russia, China, Tanzania, Zambia, and Antarctica. Early therocephalian fossils discovered in Middle Permian deposits of South Africa support a Gondwanan origin for the group, which seems to have spread quickly across Earth. Although almost every therocephalian lineage ended during the great Permian–Triassic extinction event, a few represe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
