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Psopheticus Vocans
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus'' *''Psopheticus stridulans ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the foll ...'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus Crosnieri
''Goneplax'' is a genus of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the ...s, in the family, Goneplacedae, containing the following extant species: *'' Psopheticus crosnieri'' *'' Psopheticus musicus'' *'' Psopheticus stridulans'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Wood-Mason
James Wood-Mason (December 1846 – 6 May 1893) was an English zoologist. He was the director of the Indian Museum at Calcutta, after John Anderson. He collected marine animals and lepidoptera, but is best known for his work on two other groups of insects, phasmids (stick insects) and mantises (praying mantises). The genus '' Woodmasonia'' Brunner, 1907, and at least ten species of phasmids, are named after him.Bragg, 2008. Life and career Wood-Mason was born in Gloucestershire, England, where his father was a doctor. He was educated at Charterhouse School and Queen's College, Oxford. He went out to India in 1869 to work in the Indian Museum, Calcutta, which in 2008 still housed his collection of insects. In 1872 he sailed to the Andaman Islands, mostly studying marine animals, but also collecting and later describing two new phasmids, '' Bacillus hispidulus'' and '' Bacillus westwoodii''. Wood-Mason described 24 new species of phasmids, mostly from South Asia but also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab
Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely under the thorax. They live in all the world's oceans, in freshwater, and on land, are generally covered with a thick exoskeleton, and have a single pair of pincers. They first appeared during the Jurassic Period. Description Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to . Several other groups of crustaceans with similar appearances – such as king crabs and porcelain crabs – are not true crabs, but have evolved features similar to true crabs through a process known as carcinisation. Environment Crabs are found in all of the world's oceans, as well as in fresh w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus Musicus
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri ''Goneplax'' is a genus of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen) ( el, βραχύς , translit=brachys = short, / = tail), usually hidden entirely u ...'' *'' Psopheticus musicus'' *'' Psopheticus stridulans'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus Stridulans
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri ''Goneplax'' is a genus of crab Crabs are decapod crustaceans of the infraorder Brachyura, which typical ...'' *'' Psopheticus stridulans'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus Vocans
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus'' *''Psopheticus stridulans ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the foll ...'' *'' Psopheticus vocans'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psopheticus Shujenae
''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus'' *''Psopheticus stridulans'' *''Psopheticus vocans ''Goneplax'' is a genus of crabs, in the family, Goneplacedae, containing the following extant species: *''Psopheticus crosnieri'' *''Psopheticus musicus'' *''Psopheticus stridulans ''Goneplax'' is a genus of crabs, in the family, Gone ...'' A further species ('' Psopheticus shujenae'') is known from the fossil record (as is also ''Psopheticus stridulans''), dating from 0.012 Ma onwards. It was first described in 1892 by James Wood-Mason.Wood-Mason J. 1891. Administration Report of Marine Survey of India or 1890-1891 Office of the Superintendent of Government Printing, Calcutta. 20 pp. References Goneplacoidea {{crab-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Record
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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