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Glaessneropsoidea
Glaessneropsoidea is a superfamily of fossil crabs. They are found in rocks from Late Jurassic age to Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the .... The 45 species in the superfamily are divided among 11 genera in four families: ;Family Glaessneropsidae Patrulius, 1959 *'' Ekalakia'' Bishop, 1976 *'' Glaessneropsis'' Patrulius, 1959 *'' Rathbunopon'' Stenzel, 1945 *'' Vectis'' Withers, 1946 *'' Verrucarcinus'' Schweitzer & Feldmann, 2009 ;Family Lecythocaridae Schweitzer & Feldmann, 2009 *'' Lecythocaris'' von Meyer, 1860 ;Family Longodromitidae Schweitzer & Feldmann, 2009 *'' Abyssophthalmus'' Schweitzer & Feldmann, 2009 *'' Coelopus'' Étallon, 1861 *'' Longodromites'' Patrulius, 1959 *'' Planoprosopon'' Schweitzer, Feldmann & Lazǎr, 2007 ;Family Nodopro ... [...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] |
Dromiacea
Dromiacea is a group of crabs, ranked as a section. It contains 240 extant and nearly 300 extinct species. Dromiacea is the most basal grouping of Brachyura crabs, diverging the earliest in the evolutionary history, around the Late Triassic or Early Jurassic. Below is a cladogram showing Dromiacea's placement within Brachyura: The larvae of Dromiacea resemble those of the Anomura more closely than those of other crabs. This may simply reflect their basal position in the crab phylogeny. The superfamily Eocarcinoidea, containing '' Eocarcinus'' and '' Platykotta'', was previously considered to be a member of the Dromiacea, but has since been transferred to the Anomura. The fossil record of Dromiacea reaches back at least as far as the Jurassic, and, if '' Imocaris'' is indeed a member, into the Carboniferous. Dromiacea primarily consists of two groups of superfamilies - Dromioidea and Homoloidea. See the below cladogram: Recent studies have found that some of the fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coelopus (crab)
Coelopus may refer to: * ''Coelopus'' (crab), a fossil genus of crabs in the family Longodromitidae * ''Coelopus'', a genus of fungi in the family Gyroporaceae, synonym of '' Gyroporus'' * ''Coelopus'', a genus of rotifers in the family Trichocercidae, synonym of '' Trichocerca'' {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vectis (crab)
Vectis may refer to: Places * Vectis, the ancient Roman name for the Isle of Wight Organisations * Vectis Bus Company, the forerunner of present day Isle of Wight bus company Southern Vectis, set up in the early 1920s. * Vectis postal service, a postal service set up to serve the Isle of Wight during the postal strikes of 1971. * The Vectis National Party, a minor political party operating on the Isle of Wight in the early 1970s. * The Vectis Tigers, an English ice hockey team on the Isle of Wight founded in 2007, now known as the Wightlink Tigers. * Vectis Radio, a radio station launched in 2010 by former Isle of Wight Radio DJ Ian Mac. Other uses * The Vectis Formation, an Early Cretaceous fossil-bearing geological formation on the Isle of Wight * , a name used more than once by the British Royal Navy * Calipt'Air Vectis The Calipt'Air Vectis is a Swiss single-place, paraglider that was designed and produced by Calipt'Air of Spiez Spiez is a town and municipality on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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