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Peltocephalus Maturin
''Peltocephalus maturin'' is an extinct species of podocnemidid river turtle closely related to the big-headed Amazon River turtle (''Peltocephalus dumerilianus'') that lived during the Late Pleistocene and Early Holocene in what is now Brazil. ''P. maturin'' is known from a singular lower jaw of enormous size, with estimates suggesting its carapace may have reached lengths of around . This would make it one of the largest freshwater turtles in history, comparable in size to the Paleocene podocnemidid '' Carbonemys'' and only exceeded by the Miocene podocnemidid ''Stupendemys''. Like its closest relative, it was likely an omnivore, the narrow cutting surface of its lower jaw unsuited for strict herbivory or durophagy. History and naming ''Peltocephalus maturin'' was described in 2024 on the basis of specimen MERO.PV.H 007, a partial lower jaw discovered by gold miners within the Taquaras Quarry of Rondônia, Brazil. Since the Rio Madeira Formation is the only geological unit expo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peltocephalus Dumerilianus Female And Male Tails
The Big-headed Amazon River turtle (''Peltocephalus dumerilianus''),"''Peltocephalus dumerilianus'' " The Reptile Database. also known as the big-headed sideneck, is a of in the . Taxonomy< ...
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Podocnemididae
Podocnemididae is a family of pleurodire (side-necked) turtles, once widely distributed. Most of its 41 genera and 57 species are now extinct. Seven of its eight surviving species are native to South America: the genus '' Peltocephalus'', with two species, only one of which is extant (''P. dumerilianus'', the Big-headed Amazon River turtle); and the genus ''Podocnemis'', with six living species of South American side-necked river turtles and four extinct. There is also one genus native to Madagascar: '' Erymnochelys'', the Madagascan big-headed turtle, whose single species ''E. madagascariensis''. Like other pleurodire turtles, podocs have a "side-necked" defensive posture, turning the head sideways to hide it under the shell. Another characteristic of pleurodires is that the pelvis is fused to the shell which prevents pelvic motion, making it difficult to walk on land. Podocnemididae turtles live in aquatic environments and have shells streamlined to aid in swimming. The family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascan Big-headed Turtle
The Madagascan big-headed turtle (''Erymnochelys madagascariensis'') is a turtle native to the waters of permanent slow moving rivers and lakes in western Madagascar. These turtles are critically endangered and have been evaluated to be the most endangered turtle in the world by a 2018 review. Due to its ancient origins and threatened status, it is ranked as #1 on the EDGE of Existence programme's list of priority reptiles. Taxonomy It is a highly evolutionary distinctive species, the only member of the ancient family Podocnemidae found outside of South America. It diverged from its closest living relative, ''Podocnemis'', during the Late Cretaceous, about 78 million years ago. Fossils of podocnemid turtles that are suggested to be closely related to ''Erymnochelys'' belonging to the same tribe Erymnochelyini, are known from the Cenozoic of Africa and Europe, with the youngest remains of turtles belonging to Erymnochelyini in mainland Africa dating to the Pliocene. Descriptio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André Marie Constant Duméril
André Marie Constant Duméril (1 January 1774 – 14 August 1860) was a French zoologist. He was professor of anatomy at the National Museum of Natural History (France), Muséum national d'histoire naturelle from 1801 to 1812, when he became professor of herpetology and ichthyology. His son Auguste Duméril was also a zoologist, and the author citation (zoology), author citation Duméril is used for both André and his son. Life André Marie Constant Duméril was born on 1 January 1774 in Amiens and died on 14 August 1860 in Paris. He became a doctor at a young age, obtaining, at 19 years, the ''prévot'' of anatomy at the medical school of Rouen. In 1800, he left for Paris and collaborated in the drafting of the comparative anatomy lessons of Georges Cuvier. He replaced Cuvier at the Central School of the Panthéon, Paris, Panthéon and had, as his colleague, Alexandre Brongniart. In 1801, he gave courses to the medical school of Paris. Under the Bourbon Restoration in Fran ... [...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 the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pará
Pará () is a Federative units of Brazil, state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins (state), Tocantins, Mato Grosso, Amazonas (Brazilian state), Amazonas and Roraima. To the northwest are the borders of Guyana and Suriname, to the northeast of Pará is the Atlantic Ocean. The capital and largest city is Belém, which is located at the Marajó bay, near the estuary of the Amazon river. The state, which is home to 4.1% of the Brazilian population, is responsible for just 2.2% of the Brazilian GDP. Pará is the most populous state of the North Region, Brazil, North Region, with a population of over 8.6 million, being the ninth-most populous state in Brazil. It is the second-largest state of Brazil in area, at , second only to Amazonas (Brazilian state), Amazonas upriver. Its most famous icons are the Amazon River and the Amazon rainforest. Pará produces Natural rubber, rubber ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazonas (Brazilian State)
Amazonas () is a federative units of Brazil, state of Brazil, located in the North Region, Brazil, North Region in the north-western corner of the country. It is the Federative units of Brazil#List, largest Brazilian state by area and the list of the largest country subdivisions by area, ninth-largest country subdivision in the world with an area of 1,570,745.7 square kilometers. It is the largest country subdivision in South America, being greater than the areas of Chile, Paraguay, and Uruguay combined. Neighbouring states are (from the north clockwise) Roraima, Pará, Mato Grosso, Rondônia, and Acre (state), Acre. It also borders the nations of Peru, Colombia and Venezuela. This includes the departments of Colombia, Departments of Amazonas (Colombian department), Amazonas, Vaupés Department, Vaupés and Guainía Department, Guainía in Colombia, as well as the Amazonas State, Venezuela, Amazonas state in Venezuela, and the Loreto Region in Peru. Amazonas is named after the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Watkins
Michael, Mike Watkins or Watkin may refer to: * Michael D. Watkins, American author * Michael M. Watkins, American engineer and scientist * Michael W. Watkins, American television producer * Michael Watkins (zoologist) Michael Watkins is a British shipbroker and zoologist. He is known for his books about the eponym An eponym is a noun after which or for which someone or something is, or is believed to be, named. Adjectives derived from the word ''eponym'' in ..., zoologist and author * Mike Watkin (speedway rider) (born 1943), English speedway rider * Mike Watkins (rugby union) (born 1952), Welsh rugby union player * Mike Watkins (basketball) (born 1995), American basketball player {{hndis, Watkins, Michael ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podocnemis
''Podocnemis'' is a genus of aquatic turtles, commonly known as South American river turtles, in the Family (biology), family Podocnemididae. The genus consists of six Extant taxon, extant species occurring in tropical South America.''Podocnemis'' The Reptile Database. www.reptile-database.org. Four additional species are known only from fossils. These turtles have pig-like noses but are not closely related to the pig-nosed turtle. Species These six species are extant. *''Podocnemis erythrocephala'' – red-headed Amazon River turtle *''Podocnemis expansa'' – Arrau turtle *''Podocnemis lewyana'' – Magdalena River turtle *''Podocnemis sextuberculata'' – six-tubercled Amazon River turtle *''Podocnemis unifilis'' – yellow-spotted rive ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombia
Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuela to the east and northeast, Brazil to the southeast, Peru and Ecuador to the south and southwest, the Pacific Ocean to the west, and Panama to the northwest. Colombia is divided into 32 Departments of Colombia, departments. The Capital District of Bogotá is also the List of cities in Colombia by population, country's largest city hosting the main financial and cultural hub. Other major urban areas include Medellín, Cali, Barranquilla, Cartagena, Colombia, Cartagena, Santa Marta, Cúcuta, Ibagué, Villavicencio and Bucaramanga. It covers an area of 1,141,748 square kilometers (440,831 sq mi) and has a population of around 52 million. Its rich cultural heritage—including language, religion, cuisine, and art—reflects its history as a co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
