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Kannemeyeriiformes
Kannemeyeriiformes is a group of large-bodied Triassic dicynodonts. As a clade, Kannemeyeriiformes has been defined to include the species '' Kannemeyeria simocephalus'' and all dicynodonts more closely related to it than to the species '' Lystrosaurus murrayi''. Evolutionary history Despite being the most species-rich group of dicynodonts in the Triassic Period, kannemeyeriiforms exhibit much less diversity in terms of their anatomy and ecological roles than the dicynodonts from the Permian Period. Lystrosauridae is thought to be the most closely related group (sister taxon) to Kannemeyeriiformes, and since the earliest lystrosaurids are known from the Late Permian, the divergence of these two groups must have occurred at least as far back as this time, implying that a long ghost lineage must exist. Although no kannemeyeriiforms have been found in the Late Permian yet, the recent discovery of '' Sungeodon'' helps fill a gap in the early fossil record of the group by showing th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repelinosaurus
''Repelinosaurus'' is an extinct genus of dicynodont from the Purple Claystone Formation of Luang Prabang in Laos, Southeast Asia that lived at around the time of the Permian-Triassic boundary and possibly dates to the earliest Early Triassic. Its Type species, type and only known species is ''R. robustus''. ''Repelinosaurus'' was originally described as the earliest known Kannemeyeriiformes, kannemeyeriiform dicynodont, supporting the idea of a more rapid radiation of the Triassic kannemeyeriiform dicynodonts during the Early Triassic following the Permian mass extinction. However, it may alternatively be more closely related to the Permian ''Dicynodon''. The discovery of a potential early kannemeyeriiform in an understudied locality like Laos highlights the importance of such places in dicynodont research, which has been largely focused on historically important localities such as the Karoo Basin of South Africa. Description ''Repelinosaurus'' was a medium-sized dicynodont (larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinokannemeyeria
''Sinokannemeyeria'' is a genus of kannemeyeriiform dicynodont that lived during the Anisian age of Middle Triassic period in what is now Shanxi, China.J. Liu. 2015. New discoveries from the Sinokannemeyeria-Shansisuchus Assemblage Zone: 1. Kannemeyeriiformes from Shanxi, China. Vertebrata PalAsiatica 53(1):16-28 Description ''Sinokannemeyeria'' was about in length and in weight. It had relatively short, stumpy legs which were held slightly sprawling gait to the sides of its body. The limb girdles were formed into large, heavy plates of bone to support the weight of the wide, heavily built body. ''Sinokannemeyeria'' was probably not a fast or agile animal. The front of the jaw had a small horn-covered beak, and there were two small tusks growing from bulbous projections on the upper jaw. These tusks could have been used to dig up roots. Compared to '' Kannemeyeria'', it had broader snout, smaller temporal fenestrae and lower temporal crests. ''Sinokannemeyeria'' may had rath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wadiasaurus
''Wadiasaurus'' (Wadia is of Islamic origin and means "guardianship," and "sauros" means lizard) is an extinct genus of dicynodont from the family Kannemeyeria, that lived in herds from the early to Middle Triassic. Substantial fossorial evidence of ''W. indicus'' was recovered from Yerrapalli Formation of the Pranhita-Godavari valley, India, and it is so far the only Kannemeyeriid known for certain from India. The Kannemeyeriiformes underwent a significant diversification during the middle Triassic, with roughly 40 known species distributed worldwide. All Kannemeyeriiformes were medium to large bodied, graviportal herbivores with relatively erect posture and gait. ''Wadiasaurus indicus'' is currently the only known species of ''Wadiasaurus''. Discovery ''Wadiasaurus indicus'' is represented by a collection of well-preserved fossil material recovered from the Yerrapalli formation in India. In a single bone bed, at least 700 cranial and postcranial elements amounting to more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stahleckeria
''Stahleckeria'' is an extinct genus of Middle Triassic (Ladinian) dicynodonts.''Stahleckeria'' at .org It lived about 240 million years ago in what is now and . As a member of the group Kannemeyeriiformes, it was similar to the genus '' Kannemeyeria''. The genus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinodontosauridae
''Dinodontosaurus'' (meaning "terrible-toothed lizard") is a genus of dicynodont therapsid. It was medium to large dicynodont of the Triassic (with skull up to long) and had a beak corneum. It lived in the Middle Triassic but disappeared in the Upper Triassic. Species * ''Dinodontosaurus tener'' is the most common species of dicynodont that existed in the Middle Triassic, and more common in the fossil layers that age in Rio Grande do Sul, in Rota Paleontológica. They are found mainly in the Paleontological Site Chiniquá in São Pedro do Sul and Candelária, where a group of ten pups were found together, demonstrating that these animals had strategies for coexistence in a group and caring for their offspring. ''Diodontosaurus pedroanum'' Tupi-Caldas, 1936 and ''Dinodontosaurus oliveirai'', Romer 1943 are synonyms. * ''Dinodontosaurus brevirostris'' is known from skeleton remains and a coprolite animal latrine [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acratophorus Argentinensis
''Acratophorus'' is an extinct genus of dicynodont that lived during the Anisian age of the Middle Triassic-aged Río Seco de la Quebrada Formation in what is now Argentina. The type species, ''A. argentinensis'', was originally placed in the genus ''Kannemeyeria'' by Jose Bonaparte in 1966, and later sometimes referred to '' Vinceria'', before being transferred to a new, distinct genus, ''Acratophorus'', in 2021 by Christian Kammerer and Angi Ordoñez. The species ''Vinceria vieja'' was also made a synonym of ''A. argentinensis'' in 2021. The holotype A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ... is PVL 3645, a partial skeleton discovered probably between the 1930s and the early 1960s near a farm house in Puesto Viejo. References {{Taxonbar, from=Q104888715 Kanneme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angonisaurus
''Angonisaurus'' is an extinct genus of kannemeyeriiform dicynodont from the Middle Triassic of Africa between 247 and 242 million years ago.Hancox, P. John, Kenneth D. Angielczyk, and Bruce S. Rubidge. "Angonisaurus and Shansiodon, Dicynodonts (Therapsida, Anomodontia) from Subzone C of the Cynognathus Assemblage Zone (Middle Triassic) of South Africa." ''Journal of Vertebrate Paleontology'' 33.3 (2013): 655-76. Only one species, ''Angonisaurus cruickshanki'' has been assigned to this genus. This genus is thought to have been widely spread but rare in southern Gondwana. Though few in number, the fossil record of ''Angonisaurus cruickshanki'' contains multiple specimens giving it a measurable stratigraphic range. Sexually dimorphic features are found in ''Angonisaurus'' which include presence or absence of tusks and difference is size and robustness of the temporal arch and the rostral. Discovery and naming ''Angonisaurus'' was discovered in the African Karoo Basin in 1983. Beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinodontosaurus
''Dinodontosaurus'' (meaning "terrible-toothed lizard") is a genus of dicynodont therapsid. It was medium to large dicynodont of the Triassic (with skull up to long) and had a beak corneum. It lived in the Middle Triassic but disappeared in the Upper Triassic. Species * ''Dinodontosaurus tener'' is the most common species of dicynodont that existed in the Middle Triassic, and more common in the fossil layers that age in Rio Grande do Sul, in Rota Paleontológica. They are found mainly in the Paleontological Site Chiniquá in São Pedro do Sul and Candelária, where a group of ten pups were found together, demonstrating that these animals had strategies for coexistence in a group and caring for their offspring. ''Diodontosaurus pedroanum'' Tupi-Caldas, 1936 and ''Dinodontosaurus oliveirai'', Romer 1943 are synonyms. * ''Dinodontosaurus brevirostris'' is known from skeleton remains and a coprolite animal latrine [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolichuranus
''Dolichuranus'' is an extinct genus of dicynodont therapsids from the Middle Triassic Omingonde Formation of Namibia and the Ntawere Formation of Zambia. Phylogeny ''Dolichuranus'' in a cladogram after Szczygielski & Sulej (2023): See also * List of therapsids This list of therapsids is an attempt to create a comprehensive listing of all Genus, genera that have ever been included in the Therapsida excluding mammals and purely vernacular terms. The list includes all commonly accepted genera, but also gene ... References * ''Chinese Fossil Vertebrates'' by Spencer G. Lucas Further reading * Kannemeyeriiformes Anisian life Middle Triassic synapsids of Africa Triassic Namibia Fossils of Namibia Omingonde Formation Fossils of Zambia Fossil taxa described in 1973 Anomodont genera {{anomodont-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kannemeyeria
''Kannemeyeria'' is a genus of dicynodont that lived during the Anisian age of Middle Triassic period in what is now Africa and South America. The generic name is given in honor of Daniel Rossouw Kannemeyer, the South African fossil collector who discovered the original specimen. It is one of the first representatives of the family, and hence one of the first large herbivores of the Triassic. Description ''Kannemeyeria'' was about in length, about the size of an ox. Although it had a large head, it was lightweight due to the size of the eye sockets and nasal cavity. It also had limb girdles which formed massive plates of bone that helped support its heavily built body. ''Kannemeyeria'' was well-adapted to living as a herbivore; it had a powerful beak and strong jaw muscles built for shearing plant material. ''Kannemeyeria'' had a massive head with unusually large openings for the eyes, nostrils and jaw muscles. It evidently tore up roots, stripped leaves from the vegetation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sungeodon
''Sungeodon'' is an extinct genus of dicynodont therapsid from the Early Triassic of China. It is known from a single type species In International_Code_of_Zoological_Nomenclature, 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 spe ..., ''Sungeodon kimkraemerae'', which was named in 2014. ''Sungeodon'' is the earliest member of a group of dicynodonts called Kannemeyeriiformes, which would radiate later in the Triassic to become the dominant large herbivores of terrestrial ecosystems. Before its discovery no kannemeyeriiform dicynodonts were known from the Early Triassic. The presence of ''Sungeodon'' in the earliest Triassic Jiucaiyuan Formation indicates that dicynodonts diversified soon after the Permian-Triassic extinction event, mirroring the explosive radiations of other tetrapod groups such as archosaurs soon after the extinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kannemeyeria Simocephalus
''Kannemeyeria'' is a genus of dicynodont that lived during the Anisian age of Middle Triassic period in what is now Africa and South America. The generic name is given in honor of Daniel Rossouw Kannemeyer, the South African fossil collector who discovered the original specimen. It is one of the first representatives of the family, and hence one of the first large herbivores of the Triassic. Description ''Kannemeyeria'' was about in length, about the size of an ox. Although it had a large head, it was lightweight due to the size of the eye sockets and nasal cavity. It also had limb girdles which formed massive plates of bone that helped support its heavily built body. ''Kannemeyeria'' was well-adapted to living as a herbivore; it had a powerful beak and strong jaw muscles built for shearing plant material. ''Kannemeyeria'' had a massive head with unusually large openings for the eyes, nostrils and jaw muscles. It evidently tore up roots, stripped leaves from the vegetation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
