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Lepidosauromorpha
Lepidosauromorpha (in PhyloCode known as ''Pan-Lepidosauria'') is a group of reptiles comprising all diapsids closer to lizards than to archosaurs (which include crocodiles and birds). The only living sub-group is the Lepidosauria, which contains two subdivisions, Squamata, which contains lizards and snakes, and Rhynchocephalia, the only extant species of which is the tuatara. Lepidosauromorphs are distinguishable from archosauromorphs (reptiles closer to archosaurs) by their primitive sprawling gait (allowing for the same sinusoidal trunk and tail movement seen in fish), the sliding "joint" between the coracoids and the sternum (for a longer stride), and their pleurodont dentition. In contrast, Archosauromorphs possess a parasagittal gait, a reduction in their dermal girdle, a reduction and/or loss of the sternum, and a more thecodont dentition. Living lepidosauromorphs have retained an ectothermic (" cold blooded") metabolism, unlike the ancestral condition in archosauromorphs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ankylopoda
Ankylopoda was a proposed clade that hypothetically contains turtles and lepidosaurs (tuatara, lizards and snakes) and their fossil relatives. This clade is supported based on microRNAs as well as the fossil record. However, it was strongly contradicted by molecular evidence which supports Archelosauria. Classification The cladogram below follows the most likely result found by another analysis of turtle relationships, this one using only fossil evidence, published by Rainer Schoch and Hans-Dieter Sues in 2015. This study found ''Eunotosaurus'' to be an actual early stem-turtle, though other versions of the analysis found weak support for it as a parareptile. See also * Archelosauria Archelosauria is a clade grouping turtles and archosaurs (birds and crocodilians) and their fossil relatives, to the exclusion of lepidosaurs (the clade containing lizards, snakes and the tuatara). The majority of phylogenetic analyses based on m ..., an alternative clade that places turtles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vinitasaura
''Vinitasaura'' is an extinct genus of lepidosauromorph from the Late Triassic of Virginia. It contains a single species, ''Vinitasaura lizae'', which is based on a complete jaw and jaw fragment from the Carnian-age Vinita Formation of the Richmond Basin. ''Vinitasaura'' lived alongside several other lepidosauromorphs, including the sphenodontian ''Micromenodon'' and an undescribed pleurodont taxon. The Vinita Formation has the oldest lepidosauromorph assemblage found in North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ..., shedding light on the early diversification and dispersal of this reptile group. References Late Triassic reptiles of North America Triassic lepidosauromorphs Fossil taxa described in 2021 Prehistoric reptile genera {{Triassic-repti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipasaurus
''Tamaulipasaurus'' is an extinct genus of lepidosauromorph reptile from the Early Jurassic of Mexico. It contains a single species, ''Tamaulipasaurus morenoi'', which is based on skull material found at Huizachal Canyon, a productive fossil site in the La Boca Formation.R. C. Munter and J. M. Clark. 2006. Theropod dinosaurs from the Early Jurassic of Huizachal Canyon, Mexico. In M. T. Carrano, T. J. Gaudin, R. W. Blob, J. R. Wible (eds.), Amniote paleobiology: perspectives on the evolution of mammals, birds, and reptiles. University of Chicago Press, Chicago 53-7 ''Tamaulipasaurus'' had an unusual condensed skull similar to that of amphisbaenians, a modern group of burrowing squamates. It also possessed a variety of plesiomorphic In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does not distinguish the clade from other clades. Plesiomorphy, symplesiomorphy, apomorphy, and ... (" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuehneosauridae
Kuehneosauridae is an extinct family of small, lizard-like gliding diapsids known from the Triassic period of Europe and North America. They are distinguished from other diapsids by their 'wings' formed by elongated ribs. These allowed the animal to glide and parachute similar to living gliding lizards. They were most likely insectivorous, judging from their pin-like teeth. They are often, but not always, placed in the group Lepidosauromorpha, though other studies have recovered them in other positions within Sauria, including Archosauromorpha. The oldest and most primitive known member is ''Pamelina'' from the Early Triassic (Olenekian stage) of Poland, which already has vertebrae with characteristics consistent with gliding or parachuting. ''Icarosaurus'' is known from a single specimen from the Carnian-aged Lockatong Formation of New Jersey. The Late Triassic (Norian stage) kuehneosaurids from England, ''Kuehneosaurus'' and ''Kuehneosuchus'', are very similar and can be disting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marmoretta
''Marmoretta'' is an extinct genus of small lepidosauromorph reptile known from the Middle Jurassic (late Bathonian age) of Oxfordshire, England and Skye, Scotland. It contains a single species, ''Marmoretta oxoniensis''. Etymology ''Marmoretta'' was first described and named by Susan E. Evans in 1991 and the type species is ''Marmoretta oxoniensis''. The generic name is derived from Latin ''marmoros'', meaning "Marble" and refers to the Forest Marble Formation - the source of the initial specimens of ''Marmoretta''. The specific name is derived from ''Oxonia'', the Latinised form of "Oxford", in reference to Oxfordshire. Discovery ''Marmoretta'' is known from holotype BMNH R.12020, the anterior region of a right maxilla. Many specimens are referred to the species from the type locality, and together represent a nearly complete skull. All specimens are housed in the Natural History Museum. They were collected from the Mammal Bed of the Forest Marble Formation, at Kirtlin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cargninia
''Cargninia'' is an extinct genus of basal lepidosauromorph from the Late Triassic of Brazil. The type and only known species is ''Cargninia enigmatica''. It is known from the holotype UFRGS PV 1027 T, a partial left dentary (lower jaw bone) found in what is now Faxinal do Soturno, Rio Grande do Sul, southern Brazil, in the geopark Paleorrota. This locality is from the middle section of the Norian-age Caturrita Formation. ''Cargninia'' was named by José Fernando Bonaparte, César Leandro Schultz, Marina Bento Soares and Agustín G. Martinelli in 2010. The generic name honors Daniel Cargnin, a Brazilian priest and fossil collector, and the specific name means “enigmatic”, in reference to its uncertain phylogenetic placement. The preserved dentary has small, peg-like teeth, with the underlying jaw bone about four times deeper than the height of each tooth crown. The jaw was originally collected with eleven preserved teeth and two or three more spaces fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kevin De Queiroz
Kevin de Queiroz is a vertebrate, evolutionary, and systematic biologist. He has worked in the phylogenetics and evolutionary biology of squamate reptiles, the development of a unified species concept and of a phylogenetic approach to biological nomenclature, and the philosophy of systematic biology. Early life and Career De Queiroz was born and raised in Los Angeles, California. He received a B.S. in Biology from the University of California, Los Angeles (1978), a M.S. in Zoology from San Diego State University (1985), and a Ph.D. in Zoology from the University of California, Berkeley (1989). He was a Tilton Postdoctoral Fellow at the California Academy of Sciences and is currently a Research Zoologist and a curator of the collection of Amphibians and Reptiles at the National Museum of Natural History, Smithsonian Institution. He is a former president of the Society of Systematic Biologists and was the first president of the International Society for Phylogenetic Nomenclatu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feralisaurus
''Feralisaurus'' is an extinct genus of neodiapsid reptile, possibly a basal lepidosauromorph, known from the Middle Triassic of south-western England. It contains one species, ''Feralisaurus corami'', which was described by Cavicchini ''et al.'' in 2020. It was found in the Helsby Sandstone Formation. Discovery The holotype and only known specimen of ''Feralisaurus'', BRSUG 29950-12, was discovered in 2014 near Sidmouth, Devon. Classification ''Feralisaurus'' was recovered as either a basal neodiapsid Neodiapsida is a clade, or major branch, of the reptilian family tree, typically defined as including all diapsids apart from some early primitive types known as the araeoscelidians. Modern reptiles and birds belong to the neodiapsid subclade Sau ... or as a basal lepidosauromorph, with the researchers preferring a placement within Lepidosauromorpha. References Mesozoic lepidosauromorphs Fossils of England Triassic England Middle Triassic reptiles of Europe Fossil tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vellbergia
''Vellbergia'' is an extinct genus of lepidosauromorph from the Middle Triassic of Germany. It contains a single species, ''Vellbergia bartholomaei'', which is based on a tiny partial skull from the Ladinian-age Lower Keuper The Erfurt Formation, also known as the Lower Keuper (German: ''Untere Keuper'', ''Lettenkeuper'', ''Lettenkohle'' or ''Lettenkohlenkeuper''), is a stratigraphic formation of the Keuper group and the Germanic Trias supergroup. It was deposited du .... References Middle Triassic reptiles of Europe Triassic lepidosauromorphs Fossil taxa described in 2020 Prehistoric reptile genera {{Triassic-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taytalura
''Taytalura'' is an extinct genus of lepidosauromorph reptile from the Late Triassic of Argentina. It contains a single species, ''Taytalura alcoberi'', which is based on a well-preserved skull from the late Carnian Ischigualasto Formation. Although ''Taytalura'' did not belong to any group of modern lepidosaurs The Lepidosauria (, from Greek meaning ''scaled lizards'') is a subclass or superorder of reptiles, containing the orders Squamata and Rhynchocephalia. Squamata includes snakes, lizards, and amphisbaenians. Squamata contains over 9,000 specie ..., micro-CT scanning reveals features of the skull previously only seen in sphenodontians ( tuatara and kin). This suggests that the ancestral condition of the skull in lepidosaurs was more similar to sphenodontians than to squamates ( lizards and kin). References Late Triassic reptiles of South America Triassic lepidosauromorphs Fossil taxa described in 2021 Prehistoric reptile genera {{Triassic-reptile-st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sophineta
''Sophineta'' is an extinct genus of basal lepidosauromorph reptile known from the Early Triassic (late Olenekian age) of Małopolska Province, southern Poland. It contains a single species, ''Sophineta cracoviensis''. Discovery ''Sophineta'' was first described and named by Susan E. Evans and Magdalena Borsuk−Białynicka in 2009, and the type species is ''Sophineta cracoviensis''. It is known from holotype ZPAL RV/175, a nearly complete right maxilla. Many isolated or associated skull and postcranial fragments are referred to the species, representing frontals, parietals, prefrontal, postfrontals, postorbitals, jugals, squamosals, pterygoids, quadrates, maxillae, premaxilla, dentaries, vertebrae and ilia. ''Sophineta'' fossils were discovered ''in situ'' and collected in 1982 by a team (Paszkowski and Wieczorek) from the Institute of Geological Sciences of Jagiellonian University in Kraków. They were collected from the Czatkowice 1 locality, a single exposure near Kr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paliguana
''Paliguana'' is an extinct genus of lizard-like lepidosauromorph reptile from the earliest Triassic Katberg Formation (Beaufort Group) in the upper ''Lystrosaurus'' Assemblage Zone of South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri .... It is currently the earliest known lepdosauromorph. References *''Bringing Fossils To Life: An Introduction To Paleobiology'' by Donald R. Prothero Early Triassic reptiles of Africa Permian reptiles of Africa Fossils of South Africa Fossil taxa described in 1903 Prehistoric reptile genera {{Permian-reptile-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
