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Sauropareion
''Sauropareion'' (meaning "lizard cheek") is an extinct genus of basal procolophonid parareptile from earliest Triassic (early Induan stage) deposits of Eastern Cape Province, South Africa. It is known from the holotype SAM PK-11192, skull and partial postcranium. It was collected by the late L. D. Boonstra in 1935 from Barendskraal in the Middelburg District and referred to the Lystrosaurus Assemblage Zone of the Beaufort Group (Karoo Basin). It was first named by Sean P. Modesto, Hans-Dieter Sues and Ross J. Damiani in 2001 and the type species is ''Sauropareion anoplus''. The generic name means "lizard", ''sauros'', and "cheek", ''pareion'' from Greek in reference to the lizard-like appearance of the temporal region. The specific name comes from the Greek word ''anoplos'', meaning "without arms or armour". Phylogeny Cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauropareion Skeleton NMQR 3556
''Sauropareion'' (meaning "lizard cheek") is an extinct genus of basal procolophonid parareptile from earliest Triassic (early Induan stage) deposits of Eastern Cape Province, South Africa. It is known from the holotype SAM PK-11192, skull and partial postcranium. It was collected by the late L. D. Boonstra in 1935 from Barendskraal in the Middelburg District and referred to the Lystrosaurus Assemblage Zone of the Beaufort Group (Karoo Basin). It was first named by Sean P. Modesto, Hans-Dieter Sues and Ross J. Damiani in 2001 and the type species is ''Sauropareion anoplus''. The generic name means "lizard", ''sauros'', and "cheek", ''pareion'' from Greek in reference to the lizard-like appearance of the temporal region. The specific name comes from the Greek word ''anoplos'', meaning "without arms or armour". Phylogeny Cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A clad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procolophonidae
Procolophonidae is an extinct family of small, lizard-like parareptiles known from the Late Permian to Late Triassic that were distributed across Pangaea, having been reported from Europe, North America, China, South Africa, South America, Antarctica and Australia. The most primitive procolophonids were likely insectiovous or omnivorous, more derived members of the clade developed bicusped molars, and were likely herbivorous feeding on high fiber vegetation or durophagous omnivores. Many members of the group are noted for spines projecting from the quadratojugal bone of the skull, which likely served a defensive purpose as well as possibly also for display. At least some taxa were likely fossorial burrowers. While diverse during the Early and Middle Triassic, they had very low diversity during the Late Triassic, and were extinct by the beginning of the Jurassic. Phylogeny Below is a cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theledectes
''Theledectes'' is an extinct genus of theledectine procolophonid parareptile from middle Triassic (early Anisian stage) deposits of Free State Province, South Africa.The type species, ''Theledectes perforatus'', is based on the holotype BP/1/4585, a flattened skull. This skull was collected by the South African palaeontologist, James W. Kitching from Hugoskop in the Rouxville District and referred to subzone B of the Cynognathus Assemblage Zone of the Burgersdorp Formation, Beaufort Group (Karoo Basin). The genus was first named by Sean P. Modesto and Ross J. Damiani in 2003. However, the species was initially assigned to the genus '' Thelegnathus'' (now considered to be a ''nomen dubium'') by C.E. Gow in 1977, as the species ''Thelegnathus perforatus''. Description Most of the skull is poorly preserved, with the exception of the tooth-bearing elements. ''Theledectes'' is the only known parareptile with more than one row of marginal teeth (teeth along the edge of the mout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eumetabolodon
''Eumetabolodon'' is an extinct genus of procolophonine procolophonid parareptile from early and middle Triassic (Induan to earliest Anisian stages) deposits of Nei Mongol, northern China. Two species of ''Eumetabolodon'' were named by J. L. Li in 1983 and the type species is ''Eumetabolodon bathycephalus''. Discovery The type species is known from the holotype IVPP V6064, a nearly complete skull which was collected in the Zhuengeerqi locality, from the upper Heshanggou Formation (Olenekian and earliest Anisian stages), Ordos Basin. A second specimen, IVPP V6070 was collected in the Zhuengeerqi locality, from the Ermaying Formation (upper Olenekian stage), Ordos Basin. Additional 17 specimens, IVPP V6065-69, V6166 (1&2), V6167, V6168 (1&2), V6169-75, were collected in the Gucheng locality, from the upper Heshanggou Formation, Ordos Basin. ''"E." dongshengensis'' is known only from the holotype IVPP V6073, a partial skull including right frontal, prefrontal, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phaanthosaurus
''Phaanthosaurus'' is an extinct genus of basal procolophonid parareptile from early Triassic (Induan stage) deposits of Nizhnii Novgorod, Russian Federation. It is known from the holotype PIN 1025/1, a mandible (a dentary). It was collected from Vetluga River, Spasskoe village and referred to the Vokhmian terrestrial horizon of the Vokhma Formation. It was first named by P. K. Chudinov and B. P. Vjushkov in 1956 and the type species is ''Phaanthosaurus ignatjevi''. In 2000, Spencer and Benton found ''Contritosaurus'' to be junior synonym of ''Phaanthosaurus''. ''C. simus'' Ivakhnenko, 1974 which is known from the holotype PIN 3355/1, a partial skull with right mandible from the same location, and from three paratypes, was recombined as ''P. simus''. They also found that the second species of ''Contritosaurus'', ''C. convector'' (PIN 3357/1, a mandible) is a junior synonym of ''P. simus''. Recent cladistic Cladistics (; ) is an approach to biological classification in which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pintosaurus
''Pintosaurus'' is an extinct genus of basal procolophonid parareptile from Late Triassic deposits of northeastern Uruguay. It is known from the holotype FC-DPV 1181, a partial skull. It was collected from the Buena Vista Formation of the Paraná Basin, in Colonia Orozco, Cerro Largo Department. It was first named by Graciela Piñeiro, Alejandra Rojas and Martín Ubilla in 2004 and the type species is ''Pintosaurus magnidentis''. The generic name honours Dr. Iraja Damiani Pinto. The specific name means "with a large tooth" in Latin, a reference to the large palatal tooth pair. Phylogeny Cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to d ... after Cisneros, 2008: References Procolophonids Late Triassic reptiles of South America Triassic Uruguay Fossils of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Triassic
The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era. It is preceded by the Lopingian Epoch (late Permian, Paleozoic Era) and followed by the Middle Triassic Epoch. The Early Triassic is divided into the Induan and Olenekian ages. The Induan is subdivided into the Griesbachian and Dienerian subages and the Olenekian is subdivided into the Smithian and Spathian subages. The Lower Triassic series is coeval with the Scythian Stage, which is today not included in the official timescales but can be found in older literature. In Europe, most of the Lower Triassic is composed of Buntsandstein, a lithostratigraphic unit of continental red beds. The Early Triassic and partly also the Middle Triassic span the in ... [...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 of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theledectinae
Theledectinae is an extinct subfamily of parareptiles within the family Procolophonidae. Theledectines existed in South Africa, China and Australia during the Early-Middle Triassic period (Induan to Anisian stages). Theledectinae was named by Juan Carlos Cisneros in 2008 to include the genus ''Theledectes'', and the species '' "Eumetabolodon" dongshengensis''. ''"E." dongshengensis'' represents a new genus from China. Cladistically, it is defined as "All taxa more closely related to ''Theledectes perforatus'' (Gow, 1977a) than to ''Procolophon trigoniceps ''Procolophon'' is a genus of lizard-like procolophonid parareptiles that first appeared in the Early Triassic (Induan) of South Africa, Brazil, and Antarctica. It persisted through the Permian–Triassic extinction event, but went extinct in t ...'' Owen, 1876". In 2020, Hamley add the new genus '' Eomurruna'' from Australia to this subfamily References Procolophonids Triassic parareptiles Triassic reptiles of Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coletta (genus)
''Coletta'' is an extinct genus of basal procolophonid parareptile from Early Triassic (Induan stage) deposits of Eastern Cape Province, South Africa. It is known from the holotype GHG 228, a skull with fragmentary lower jaws. It was collected on the farm Brakfontein 333 in the Cradock District. It was found in the Katberg Formation of the Beaufort Group (Karoo Basin) and referred to the ''Lystrosaurus'' Assemblage Zone. It was first named by Christopher E. Gow in 2000 and the type species is ''Coletta seca''. ''Coletta'' was one of the most basal procolophonids, showing similarities to owenettids such as ''Owenetta''. The generic name ''Coletta'' references both ''Procolophon'' and ''Owenetta'', signifying its transitional nature. The specific name ''C. seca'' refers to seca, a Latin word referring to any stabbing weaponry. This is based on large, fang-like teeth on its vomer The vomer (; lat, vomer, lit=ploughshare) is one of the unpaired facial bones of the skull. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other evolutionary narratives about ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet or species epithet) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the specific the proper term for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
