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Llanocetidae
Llanocetidae is an extinct family of ancient toothed baleen whales from the Eocene. It was named by American paleontologist Edward Mitchell in 1989 after describing the Antarctic ''Llanocetus'', but a 2018 study by paleontologists Ewan Fordyce Ewan is an anglicisation of the Scottish Gaelic name Eòghann. It is possibly a derivative of the Pictish name, ''Vuen'' (or 'Wen'), "The Warrior" or "born of the mountain". It is most common as a male given name in Scotland and Canada. It is a ... and Felix Marx included the Peruvian '' Mystacodon'' and an undescribed New Zealand specimen OU GS10897. References Baleen whales Eocene cetaceans Fossil taxa described in 1989 {{Paleo-whale-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanocetus
''Llanocetus'' ( "Llano's whale" ) is a genus of extinct toothed baleen whales from the Late Eocene of Antarctica. The type species, ''Llanocetus denticrenatus'', reached gigantic proportions, with the juvenile specimen reaching an estimated in length; a second, unnamed species, known only from three isolated premolar teeth, reached an estimated total body length of up to . Like other contemporary baleen whales of the Eocene, ''Llanocetus'' completely lacked baleen in its jaws. It was probably a suction feeder like the modern beaked and pygmy right whales. History ''Llanocetus'' was described in 1989 by paleontologist Edward Mitchell based on a partial mandible with two teeth, specimen USNM 183022, and an endocast of the braincase, referred to the same specimen, from the La Meseta Formation of Seymour Island, Antarctica. They were excavated in 1974-75 by a joint team from the Instituto Antártico Argentino, Ohio State University and Northern Illinois University. The comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mystacodon
''Mystacodon'' is a genus of toothed baleen whale from the Late Eocene Yumaque Formation of the Pisco Basin in southwestern Peru. It is the oldest known baleen whale, and was probably a suction feeder of small prey on the seafloor. Taxonomy ''Mystacodon'' is the oldest known baleen whale, the holotype specimen dating to 36.4 million year ago to the Priabonian of the latest Eocene. The holotype, MUSM 1917, comprises the braincase, teeth, the spinal cord excluding the sacral vertebrae, some fin bones, and the left hip bone. It was originally classified into its own family, Mystacodontidae, but it was moved to the family Llanocetidae in 2018 alongside ''Llanocetus''–the second-oldest baleen whale–and an undescribed New Zealand specimen OU GS10897. The genus name, ''Mystacodon'' is said to be derived from ancient Greek ''mystacos'' "moustache" and odontos "tooth". The proper words in ancient Greek for "moustache" and "tooth" are however μύσταξ (') and ὀδούς ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baleen Whale
Baleen whales (systematic name Mysticeti), also known as whalebone whales, are a parvorder of carnivorous marine mammals of the infraorder Cetacea (whales, dolphins and porpoises) which use keratinaceous baleen plates (or "whalebone") in their mouths to sieve planktonic creatures from the water. Mysticeti comprises the families Balaenidae (right and bowhead whales), Balaenopteridae (rorquals and the gray whale), and Cetotheriidae (the pygmy right whale). There are currently 16 species of baleen whales. While cetaceans were historically thought to have descended from mesonychids, molecular evidence instead supports them as a clade of even-toed ungulates (Artiodactyla). Baleen whales split from toothed whales (Odontoceti) around 34 million years ago. Baleen whales range in size from the and pygmy right whale to the and blue whale, the largest known animal to have ever existed. They are sexually dimorphic. Baleen whales can have streamlined or large bodies, depending on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baleen Whales
Baleen whales (systematic name Mysticeti), also known as whalebone whales, are a parvorder of carnivorous marine mammals of the infraorder Cetacea (whales, dolphins and porpoises) which use keratinaceous baleen plates (or "whalebone") in their mouths to sieve planktonic creatures from the water. Mysticeti comprises the families Balaenidae (right and bowhead whales), Balaenopteridae (rorquals and the gray whale), and Cetotheriidae (the pygmy right whale). There are currently 16 species of baleen whales. While cetaceans were historically thought to have descended from mesonychids, molecular evidence instead supports them as a clade of even-toed ungulates (Artiodactyla). Baleen whales split from toothed whales (Odontoceti) around 34 million years ago. Baleen whales range in size from the and pygmy right whale to the and blue whale, the largest known animal to have ever existed. They are sexually dimorphic. Baleen whales can have streamlined or large bodies, depending on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Museum Of Natural History
The National Museum of Natural History is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States. It has free admission and is open 364 days a year. In 2021, with 7.1 million visitors, it was the eighteenth most visited museum in the world and the second most visited natural history museum in the world after the Natural History Museum in London."The World's most popular museums", CNN.com, 22 June 2017. Opened in 1910, the museum on the National Mall was one of the first Smithsonian buildings constructed exclusively to hold the national collections and research facilities. The main building has an overall area of with of exhibition and public space and houses over 1,000 employees. The museum's collections contain over 145 million specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, the largest natural history collection in the world. It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Mitchell (paleontologist)
Edward Mitchell may refer to: *Edward Page Mitchell (1852–1927), American writer * Edward Mitchell (Irish politician) (1852–1921), Member of Parliament for North Fermanagh, 1903–1906 *Edward Fancourt Mitchell (1855–1941), Australian lawyer *Edward Mitchell (Scottish politician) (1879–1965), British Member of Parliament for Paisley, 1924–1929 * Edward Mitchell (pianist) (1891–1950), British pianist and composer known for his interpretations of Russian music * Edward Mitchell (footballer) (1892–1916), English footballer * Edward Mitchell (New York politician) (1842–1909), American lawyer and politician from New York * Ed Mitchell (rower) (1901–1970), American rower * E. A. Mitchell (Edward Archibald Mitchell, 1910–1979), U.S. Representative from Indiana, military leader and businessman *Ed Mitchell (Edward Frederick Mitchell, born 1953), British former television presenter and news reader See also *Eddy Mitchell Claude Moine (; born 3 July 1942), known prof ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope Carbon-13, 13C in the atmosphere was exceptionally low in comparison with the more common isotope Carbon-12, 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Popigai impact structure, Siberia and in what is now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ewan Fordyce
Ewan is an anglicisation of the Scottish Gaelic name Eòghann. It is possibly a derivative of the Pictish name, ''Vuen'' (or 'Wen'), "The Warrior" or "born of the mountain". It is most common as a male given name in Scotland and Canada. It is also, less commonly, a surname, especially among the Scottish Clans, examples of variation in spelling include McEwan’s beer and MacEwan University. Owain is the predominant Welsh spelling of the name (or Owen when Anglicized), but Iwan and Iuan are also found, as they are in Cornish. Ouen can be considered the French or Breton spelling of the name. Another meaning of these could mean Yew Tree or ‘well born’ in Celtic languages. Ewan is also a Latin word meaning Bacchus. Ewan is sometimes incorrectly seen as a cognate to John and its variations. Ewen or Ewan is also a Scottish surname, as in Clan MacEwen. People with the given name In the arts and media *Ewan Christian (1814–1895), British architect *Ewan MacColl (1915–1989), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otago Museum
Tūhura Otago Museum is located in the city centre of Dunedin, New Zealand. It is adjacent to the University of Otago campus in Dunedin North, 1,500 metres northeast of the city centre. It is one of the city's leading attractions and has one of the largest museum collections in New Zealand. Natural science specimens and humanities artefacts from Otago, New Zealand and the world form the basis for long-term gallery displays. An interactive science centre within the museum includes a large, immersive tropical butterfly rainforest environment. In February 2022 the museum was gifted the name ''Tūhura'', meaning "to discover, investigate and explore" by local rūnanga, changing the official name to Tūhura Otago Museum. History Origins The name "Otago Museum" was first used by James Hector to describe his geological collections on display at the 1865 New Zealand Exhibition, held in Dunedin. Some of these collections were the nucleus of the Otago Museum, which first opened to the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene Cetaceans
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
