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Margaritifera Dahurica
''Margaritifera'' is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=571966 on 2021-06-22 Species Species within the genus ''Margaritifera'' include: * '' Margaritifera auricularia'' or ''Pseudunio auricularia'' * ''Margaritifera falcata'' ( Gould, 1850) * ''Margaritifera hembeli'' (Conrad, 1838) * '' Margaritifera margaritifera'' ( Linnaeus, 1758) — Freshwater pearl mussel (includes ''Margaritifera margaritifera durrovensis'' Phillips, 1928) * ''Margaritifera marrianae'' R. I. Johnson, 1983 The following fossil species are known from the mid- Cretaceous of Mongolia, being formerly classified in the genus ''Unio'': * †''Margaritifera elongata'' (Martinson, 1982) * †''Margaritifera sainshandensis'' (Martinson, 1982) * †''M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Hembeli
The Louisiana pearlshell, ''Margaritifera hembeli'', is a rare species of bivalve mollusk in the family Margaritiferidae. This freshwater mussel is native to Louisiana in the United States, and was previously present also in Arkansas. It grows to a length of about and lives on the sand or gravel stream-bed in riffles and fast flowing stretches of small streams. Its life cycle involves a stage where it lives parasitically inside a fish. This mollusk is sensitive to increased sedimentation and cannot tolerate impoundments. Because of its limited range and its population decline, the International Union for Conservation of Nature has rated this mollusk as being " critically endangered". Description This mussel reaches about 10 centimeters long by 5 wide and 3 high. It is dark brown or black in color with a white nacre.USFWSFinal endangered status for Louisiana Pearlshell (''Margaritifera hembeli'').''Federal Register'' February 5, 1988. Ecology This mussel lives in small, shallow c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera
''Margaritifera'' is a genus of freshwater mussels, Aquatic animal, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=571966 on 2021-06-22 Species Species within the genus ''Margaritifera'' include: * ''Margaritifera auricularia'' or ''Pseudunio auricularia'' * ''Margaritifera falcata'' (Augustus Addison Gould, Gould, 1850) * ''Margaritifera hembeli'' (Conrad, 1838) * ''Margaritifera margaritifera'' (Carl Linnaeus, Linnaeus, 10th edition of Systema Naturae, 1758) — Freshwater pearl mussel (includes ''Margaritifera margaritifera durrovensis'' Phillips, 1928) * ''Margaritifera marrianae'' R. I. Johnson, 1983 The following fossil species are known from the mid-Cretaceous of Mongolia, being formerly classified in the genus ''Unio (bivalve), Unio'': * †''Margaritifera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Glabra
''Margaritifera'' is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=571966 on 2021-06-22 Species Species within the genus ''Margaritifera'' include: * ''Margaritifera auricularia'' or ''Pseudunio auricularia'' * '' Margaritifera falcata'' (Gould, 1850) * '' Margaritifera hembeli'' (Conrad, 1838) * ''Margaritifera margaritifera'' (Linnaeus, 1758) — Freshwater pearl mussel (includes '' Margaritifera margaritifera durrovensis'' Phillips, 1928) * '' Margaritifera marrianae'' R. I. Johnson, 1983 The following fossil species are known from the mid-Cretaceous of Mongolia, being formerly classified in the genus '' Unio'': * †'' Margaritifera elongata'' (Martinson, 1982) * †'' Margaritifera sainshandensis'' (Martinson, 1982) * †'' Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Sainshandensis
''Margaritifera'' is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=571966 on 2021-06-22 Species Species within the genus ''Margaritifera'' include: * ''Margaritifera auricularia'' or ''Pseudunio auricularia'' * '' Margaritifera falcata'' (Gould, 1850) * '' Margaritifera hembeli'' (Conrad, 1838) * ''Margaritifera margaritifera'' (Linnaeus, 1758) — Freshwater pearl mussel (includes '' Margaritifera margaritifera durrovensis'' Phillips, 1928) * '' Margaritifera marrianae'' R. I. Johnson, 1983 The following fossil species are known from the mid-Cretaceous of Mongolia, being formerly classified in the genus '' Unio'': * †'' Margaritifera elongata'' (Martinson, 1982) * †'' Margaritifera sainshandensis'' (Martinson, 1982) * †''Marg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Elongata
''Margaritifera'' is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=571966 on 2021-06-22 Species Species within the genus ''Margaritifera'' include: * ''Margaritifera auricularia'' or ''Pseudunio auricularia'' * '' Margaritifera falcata'' (Gould, 1850) * '' Margaritifera hembeli'' (Conrad, 1838) * ''Margaritifera margaritifera'' (Linnaeus, 1758) — Freshwater pearl mussel (includes '' Margaritifera margaritifera durrovensis'' Phillips, 1928) * '' Margaritifera marrianae'' R. I. Johnson, 1983 The following fossil species are known from the mid-Cretaceous of Mongolia, being formerly classified in the genus '' Unio'': * †'' Margaritifera elongata'' (Martinson, 1982) * †''Margaritifera sainshandensis'' (Martinson, 1982) * †''Marga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unio (bivalve)
''Unio'' is a genus of medium-sized freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. They are found throughout Europe, Africa, and the Middle East, with some species introduced to East Asia. Fossil species are also known from the Jurassic of North America. ''Unio'' is the type genus of the family Unionidae. Species Species in the genus ''Unio'' include: *'' Unio abyssinicus'' Martens, 1866 *'' Unio bruguierianus'' Bourguignat, 1853 *''Unio caffer'' Krauss, 1848 *'' Unio cariei'' - extinctBouchet, P. & von Cosel, R. 1996.Unio cariei 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007. (no longer recognised) *'' Unio courtillieri'' Hattemann, 1859 *''Unio crassus'' Philipsson, 1788 (Thick shelled river mussel) - near threatened *'' Unio damascensis'' Lea, 1863 *'' Unio delicatus'' Lea, 1863 *'' Unio delphinus'' Spengler, 1793 *'' Unio dembeae'' Reeve, 1865 *''Unio durieui'' Deshayes, 1847 *'' Unio elongatulus'' C. Pfeiffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mongolia
Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, making it the world's most sparsely populated sovereign nation. Mongolia is the world's largest landlocked country that does not border a closed sea, and much of its area is covered by grassy steppe, with mountains to the north and west and the Gobi Desert to the south. Ulaanbaatar, the capital and largest city, is home to roughly half of the country's population. The territory of modern-day Mongolia has been ruled by various nomadic empires, including the Xiongnu, the Xianbei, the Rouran, the First Turkic Khaganate, and others. In 1206, Genghis Khan founded the Mongol Empire, which became the largest contiguous land empire in history. His grandson Kublai Khan conquered China proper and established the Yuan dynasty. After the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Marrianae
''Margaritifera marrianae'', the Alabama pearlshell, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Margaritiferidae, the freshwater pearl mussels. This species is endemic to the United States. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References Molluscs of the United States marrianae Molluscs described in 1983 Taxonomy articles created by Polbot ESA endangered species {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Margaritifera Margaritifera Durrovensis
The Nore pearl mussel (''Margaritifera durrovensis'') is a critically endangered species of freshwater pearl mussel, an aquatic bivalve mollusc in the family Margaritiferidae. The species is endemic to Ireland and was first identified by R.A. Phillips in 1926, who later declared it a new species in Volume 18 of the Proceedings of the Malacological Society. This designation was controversial, and the taxonomic status of the Nore pearl mussel remains inconclusive. It is often described as a rare ecophenotype of ''M. margaritifera''. The European Union's Habitats Directive on the conservation of natural habitats and wild fauna placed ''Margaritifera durrovensis'' on Annex II and Annex V as a separate taxon. Distribution The species is native to the Three Sisters - the rivers Barrow, Suir and Nore, the latter of which being the mussel's namesake. However, specimens have not been found outside of the River Nore since 1993. Unlike ''M. margaritifera'', which can tolerate acidic co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th Edition Of Systema Naturae
The 10th edition of ''Systema Naturae'' is a book written by Swedish naturalist Carl Linnaeus and published in two volumes in 1758 and 1759, which marks the starting point of zoological nomenclature. In it, Linnaeus introduced binomial nomenclature for animals, something he had already done for plants in his 1753 publication of '' Species Plantarum''. Starting point Before 1758, most biological catalogues had used polynomial names for the taxa included, including earlier editions of ''Systema Naturae''. The first work to consistently apply binomial nomenclature across the animal kingdom was the 10th edition of ''Systema Naturae''. The International Commission on Zoological Nomenclature therefore chose 1 January 1758 as the "starting point" for zoological nomenclature, and asserted that the 10th edition of ''Systema Naturae'' was to be treated as if published on that date. Names published before that date are unavailable, even if they would otherwise satisfy the rules. The only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
