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Actinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from Ancient Greek ἀκτίς (aktis) 'having rays' and πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish [2] that comprise over 50% of living vertebrate species. [3]
Cypriniformes / s ɪ ˈ p r ɪ n ɪ f ɔːr m iː z / is an order of ray-finned fish, which includes many families and genera of cyprinid (carps and their kin) fish, such as barbs, gobies, loaches, botias, and minnows (among others).
Actinopterygii: Subclass: Chondrostei: Order: Acipenseriformes L. S. Berg, 1940: Subgroups Genus †Eochondrosteus? Family †Chondrosteidae (sometimes placed in its own order) Family †Peipiaosteidae; Suborder Acipenseroidei. Family Acipenseridae (sturgeon) Family Polyodontidae (paddlefish)
Cyprinodontiformes / ˌ s ɪ p r ɪ n oʊ ˈ d ɒ n t ɪ f ɔːr m iː z / is an order of ray-finned fish, comprising mostly small, freshwater fish. [1] Many popular aquarium fish, such as killifish and live-bearers, are included.
Esocidae is a family of ray-finned fish in the order Salmoniformes, which contains pike, pickerel, and mudminnows. [1] While the family traditionally only contained the genus Esox, recent genetic and paleontological research have recovered Novumbra and Dallia as members of the family Esocidae, being closer related to Esox than Umbra.
The exact position in the phylogenetic tree is debated. Andreolepis has been considered a primitive actinopterygian, partly based on scale characteristics and the presence of ganoine , a homologue to true enamel , [ 8 ] which was thought to be limited to actinopterygians whereas true enamel is limited to sarcopterygians.
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The largest recorded length for the grunt sculpin is only 8.9 cm. Its main features are its big head, short, stout body, long pig snout, and orange fins. [3] The body is usually a yellow color with brown stripes contrasted by its very orange pectoral fins. [4]
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