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Osteoglossomorph
Osteoglossomorpha is a group of bony fish in the Teleostei. Notable members A notable member is the arapaima (''Arapaima gigas''), the largest freshwater fish in South America and one of the largest bony fishes alive. Other notable members include the bizarre freshwater elephantfishes of family Mormyridae. Systematics Most osteoglossomorph lineages are extinct today. Only the somewhat diverse "bone-tongues" (Osteoglossiformes) and two species of mooneyes (Hiodontiformes) remain. The Ichthyodectiform fishes from the Jurassic and Cretaceous periods were once classified as osteoglossomorphs, but are now generally recognized as stem teleosts. Basal and ''incertae sedis'' (Extinct) * Genus †'' Paralycoptera'' Chang & Chou, 1977 * Genus †''Jinanichthys'' Ma & Sun 1988 Liaoxiichthys.html"_;"title="'Liaoxiichthys">'Liaoxiichthys''_Su_1992*_Genus_?†''Kokuraichthys.html" ;"title="Liaoxiichthys">'Liaoxiichthys'' Su 1992">Liaoxiichthys.html" ;"title="'Liaoxiichthys">'Liaoxiicht ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paralycoptera
''Paralycoptera wui'' is an extinct species of basal osteoglossoid from Early Cretaceous freshwater environments of what is now China. ''P. wui'' was originally described as a lycopterid osteoglossomorph close to ''Lycoptera'', though, later, on the basis of several well preserved specimens, Xu and Chang (2009) reassessed it as a basal osteoglossoid on the basis of better-preserved fossil material.XU, G.-H. and CHANG, M.-M. (2009), Redescription of †Paralycoptera wui Chang & Chou, 1977 (Teleostei: Osteoglossoidei) from the Early Cretaceous of eastern China. Zoological Journal of the Linnean Society, 157: 83–106. doi: 10.1111/j.1096-3642.2009.00532.x Xu and Chang also synonymized the second described species, ''P. changi'', as well as '' Tanolepis'' and '' Yungkangichthys hsitanensis'' (while neglecting the Japanese species, ''Y. macrodon''), alleging that all of them were too similar to ''P. wui'' to merit separate generic or specific status, and that any anatomical diffe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleost
Teleostei (; Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts ), is, by far, the largest infraclass in the class Actinopterygii, the ray-finned fishes, containing 96% of all extant species of fish. Teleosts are arranged into about 40 orders and 448 family (biology), families. Over 26,000 species have been described. Teleosts range from giant oarfish measuring or more, and ocean sunfish weighing over , to the minute male anglerfish ''Photocorynus spiniceps'', just long. Including not only torpedo-shaped fish built for speed, teleosts can be flattened vertically or horizontally, be elongated cylinders or take specialised shapes as in anglerfish and seahorses. The difference between teleosts and other bony fish lies mainly in their jaw bones; teleosts have a movable premaxilla and corresponding modifications in the jaw musculature which make it possible for them to cranial kinesis, protrude their jaws outwards from the mouth. This is of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiodontiformes
Hiodontiformes is an order of ray-finned fish consisting of the two living species of the mooneye family, Hiodontidae, and three extinct genera. These are traditionally classified within the order Osteoglossiformes, a placement some authorities still follow. Fossil study of the extinct genus ''Yanbiania'' suggests that the hiodontids separated from other osteoglossomorphs early and thus may deserve a separate order. Taxonomy * Order Hiodontiformes McAllister 1968 sensu Taverne 1979 ** Genus †'' Chetungichthys'' Chang & Chou 1977 *** †''Chetungichthys brevicephalus'' Chang & Chou 1977 *** †''Chetungichthys dalinghensis'' Su 1991 ** Genus †'' Yanbiania'' Li 1987 *** †''Yanbiania wangqingica'' Li 1987 ** Genus †'' Plesiolycoptera'' Zhang & Zhou 1976 *** †''Plesiolycoptera daqingensis'' Zhang & Zhou 1976 *** †''Plesiolycoptera parvus'' ((Sytchevskaya, 1986) (syn ''Eohiodon (Gobihiodon) parvus'' Sytchevskaya, 1986) ** Family Hiodontidae (mooneyes) Valenciennes 1846 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleostei
Teleostei (; Ancient Greek, Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts ), is, by far, the largest class (biology), infraclass in the class Actinopterygii, the ray-finned fishes, containing 96% of all neontology, extant species of fish. Teleosts are arranged into about 40 order (biology), orders and 448 family (biology), families. Over 26,000 species have been described. Teleosts range from giant oarfish measuring or more, and ocean sunfish weighing over , to the minute male anglerfish ''Photocorynus spiniceps'', just long. Including not only torpedo-shaped fish built for speed, teleosts can be flattened vertically or horizontally, be elongated cylinders or take specialised shapes as in anglerfish and seahorses. The difference between teleosts and other bony fish lies mainly in their jaw bones; teleosts have a movable premaxilla and corresponding modifications in the jaw musculature which make it possible for them to cranial kinesi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shuleichthys
''Shuleichthys brachypteryx'' is an extinct species of ray-finned fish which existed in China during the Cretaceous period. Fossils of the fish were found in the Aptian Xiagou Formation of the Changma Basin. It is the only species in the genus ''Shuleichthys'' and cannot be placed in any order of the Osteoglossomorpha without making that order paraphyletic In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa .... References Teleostei Ray-finned fish enigmatic taxa Prehistoric ray-finned fish genera Cretaceous bony fish Aptian life Early Cretaceous vertebrates of Asia Fossils of China Fossil taxa described in 2010 {{paleo-rayfinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arapaima
The arapaima, pirarucu, or paiche is any large species of bonytongue in the genus ''Arapaima'' native to the Amazon and Essequibo basins of South America. ''Arapaima'' is the type genus of the subfamily Arapaiminae within the family Osteoglossidae.Castello, L.; and Stewart, D.J (2008). Assessing CITES non-detriment findings procedures for Arapaima in Brazil.' NDF Workshop case studies (Mexico 2008), WG 8 – Fishes, Case study 1 They are among the world's largest freshwater fish, reaching as much as in length. They are an important food fish. They have declined in the native range due to overfishing and habitat loss. In contrast, arapaima have been introduced to several tropical regions outside the native range (within South America and elsewhere), where they are sometimes considered invasive species. In Kerala, India, arapaima escaped from aquaculture ponds after floods in 2018. Its Portuguese name, ''pirarucu'', derives from the Tupi language words ''pira'' and ''urucum'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
