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Phrynops
Sometimes called the bearded toadheads but better known by their scientific name of ''Phrynops'' this genus of turtles has often been a bit of a dumping ground for the short-necked South American turtles of the family Chelidae. The genus is widely distributed in South America found in the Orinoco to Amazon and São Francisco to Paraná and adjacent river basins of Colombia, Venezuela, the Guianas, Brazil, Paraguay, Uruguay and northeastern Argentina (Iverson, 1992).lverson, J.B. 1992. ''Revised Checklist with Distribution Maps of the Turtles of the World''. Richmond, Indiana: Privately Printed. 363 pp. The phrynop turtle generally achieves thermoregulation through areal basking. In order to best attain their goal, they tend to increase their basking time during mid-day during the winters to make up for the cold. Other factors such as food intake and reproduction underwater also influence the way they control the temperature of their body. Although this is the main way they are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops Geoffroanus
''Phrynops geoffroanus'', commonly known as Geoffroy's side-necked turtle or Geoffroy's toadhead turtle, is a species of large side-necked turtle in the family Chelidae. The species is endemic to South America. Etymology The specific name, ''geoffroanus'', is in honor of French naturalist Étienne Geoffroy Saint-Hilaire.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Phrynops geoffroanus'', p. 99). Geographic range ''P. geoffroanus'' is found in southwestern Venezuela, southeastern Colombia, eastern Ecuador, and eastern Peru, southward and eastward through southwestern Brazil and northern Bolivia to Paraguay and northeastern Argentina, then northward through eastern Brazil. It also occurs in eastern Venezuela, and in adjacent Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops Hilarii
''Phrynops hilarii'', commonly known as Hilaire’s toadhead turtle or Hilaire’s side-necked turtle, is a species of freshwater turtle in the family Chelidae. The species is endemic to South America. Etymology The specific name, ''hilarii'', is in honor of French zoologist Isidore Geoffroy Saint-Hilaire. Geographic range ''P. hilarii'' is found in southern Brazil ( Santa Catarina and Rio Grande do Sul), southward and westward into Uruguay and Argentina, and possibly also in Paraguay and Bolivia. Habitat These turtles inhabit streams, lakes and swamps with abundant aquatic vegetation and soft bottoms. Description ''Phrynops hilarii'' has an oval, flattened carapace, with a maximum length of approximately 40 cm, weighing approximately 5 kg. The carapace is usually dark brown, olive, or gray, with a yellow border. The head is large and flat, gray to olive above, with a pointed snout and two bicolored chin barbels There is a black band on each side of the head, which comes ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops Tuberosus
''Phrynops tuberosus'', commonly known as the Cotinga River toadhead turtle, is a large species endemic to South America. Taxonomy In the past, ''Phrynops tuberosus'' has been considered a subspecies of '' Phrynops geoffroanus'', but it is currently afforded full species status. References Further reading * Boulenger, George Albert. 1889. ''Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New Edition.'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). x + 311 pp. + Plates I-VI. (''Hydraspis tuberosa'', p. 233). External links ''Phrynops tuberosus'' The Reptile Database. {{Taxonbar, from=Q2254858 Phrynops Turtles of South America Fauna of the Amazon Reptiles of Bolivia Reptiles of Brazil Reptiles of Colombia Reptiles of Ecuador Reptiles of Guyana Reptiles of Peru Reptiles of Venezuela Taxa named by Wilhelm Peters Reptiles described in 1870 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops
Sometimes called the bearded toadheads but better known by their scientific name of ''Phrynops'' this genus of turtles has often been a bit of a dumping ground for the short-necked South American turtles of the family Chelidae. The genus is widely distributed in South America found in the Orinoco to Amazon and São Francisco to Paraná and adjacent river basins of Colombia, Venezuela, the Guianas, Brazil, Paraguay, Uruguay and northeastern Argentina (Iverson, 1992).lverson, J.B. 1992. ''Revised Checklist with Distribution Maps of the Turtles of the World''. Richmond, Indiana: Privately Printed. 363 pp. The phrynop turtle generally achieves thermoregulation through areal basking. In order to best attain their goal, they tend to increase their basking time during mid-day during the winters to make up for the cold. Other factors such as food intake and reproduction underwater also influence the way they control the temperature of their body. Although this is the main way they are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops Williamsi
''Phrynops williamsi'', also known commonly as Williams' side-necked turtle, Williams' South American sideneck turtle, William's icSouth American side-necked turtle, William's ictoadhead turtle, and Williams' toadhead turtle, is a species of turtle in the family Chelidae. The species is endemic to South America. Etymology The specific name, ''williamsi'', is in honor of American herpetologist Ernest E. Williams. Geographic range ''P. williamsi'' is found in southeastern Brazil, Uruguay, and Argentina. The Reptile Database. www.reptile-database.org. Habitat The preferred natural of ''P. williamsi'' is freshwater |
Chelidae
Chelidae is one of three living families of the turtle suborder Pleurodira, and are commonly called Austro-South American side-neck turtles. The family is distributed in Australia, New Guinea, parts of Indonesia, and throughout most of South America. It is a large family of turtles with a significant fossil history dating back to the Cretaceous. The family is entirely Gondwanan in origin, with no members found outside Gondwana, either in the present day or as a fossil.Georges, A. & Thomson, S. (2006). "Evolution and Zoogeography of Australian freshwater turtles". In: Merrick, J. R.; Archer, M.; Hickey, G. & Lee, M. (eds.) ''Evolution and Zoogeography of Australasian Vertebrates''. Sydney: Australia. Description Like all pleurodirous turtles, the chelids withdraw their necks sideways into their shells, differing from cryptodires that fold their necks in the vertical plane. They are all highly aquatic species with webbed feet and the capacity to stay submerged for long periods of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phrynops Paranaensis
''Phrynops paranaensis'' is an extinct species of turtle from the Huayquerian Ituzaingó Formation of the Paraná Basin, Argentina, likely to be late Miocene The Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene epoch (geology), Epoch made up of two faunal stage, stages. The Tortonian and Messinian stages comprise the Late Miocene sub-epoch, which lasted from 11.63 Ma (million ye ... in origin. References {{Taxonbar, from=Q72310182 Chelidae Extinct turtles Prehistoric turtles of South America Fossil taxa described in 1923 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ituzaingó Formation
The Ituzaingó Formation ( es, Formación Ituzaingó), in older literature also described as Entre Ríos or Entrerriana Formation, is an extensive geological formation of Late Miocene (Tortonian, or Huayquerian in the SALMA classification) age in the Paraná Basin of the Corrientes, Santa Fe and Entre Ríos Provinces in Mesopotamia, northeastern Argentina.Ituzaingó Formation at .org The formation comprises mudstones, cross-bedded |
Huayquerian
The Huayquerian ( es, Huayqueriense) age is a period of geologic time (9.0–6.8 Ma) within the Late Miocene epoch of the Neogene, used more specifically within the SALMA classification. It follows the Mayoan and precedes the Montehermosan age. Etymology The age is named after the Huayquerías Formation The Huayquerías Formation ( es, Formación Huayquerías) is a Late Miocene fossiliferous geological formation of the Frontal Cordillera and Cuyo Basin of Argentina. The formation crops out in the central Mendoza Province. The formation, with a m ... in the western Cuyo Basin of northwestern Argentina that was later dated to the Montehermosan. The most complete Huayquerian fauna is found in the Cerro Azul Formation, in Buenos Aires Province also referred to as Epecuén Formation. Formations Fossil content Correlations Notes and references Notes References Bibliography ;Huayquerías Formation * * ;Andalhuala Formation * ;Camacho Formation * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Friedrich Schweigger
August Friedrich Schweigger (8 September 1783 – 28 June 1821) was a German naturalist born in Erlangen. He was the younger brother of scientist Johann Salomo Christoph Schweigger (1779-1857). He studied medicine, zoology and botany at Erlangen, and following graduation spent time in Berlin (from 1804) and Paris (from 1806). In 1809 he was appointed professor of botany and medicine at the University of Königsberg. In 1815, he was elected a corresponding member of the Royal Swedish Academy of Sciences. On a research trip to Sicily, he was murdered near Agrigento on 28 June 1821. The plant genus ''Schweiggeria'' from the family Violaceae is named in his honor. In the scientific field of herpetology, he is best known for his 1812 monograph of turtles, in which he described several new species which are still valid. Turtle taxa described by Schweigger Schweigger is the taxonomic authority of '' Chelydra'', a genus of snapping turtles. In 1812 he described as new species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turtle Genera
Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked turtles), which differ in the way the head retracts. There are 360 living and recently extinct species of turtles, including land-dwelling tortoises and freshwater terrapins. They are found on most continents, some islands and, in the case of sea turtles, much of the ocean. Like other amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, although many species live in or around water. Turtle shells are made mostly of bone; the upper part is the domed carapace, while the underside is the flatter plastron or belly-plate. Its outer surface is covered in scales made of keratin, the material of hair, horns, and claws. The carapace bones develop from ribs that grow sideways and develop into broad flat plat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
