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Redfieldiiformes is an extinct order of ray-finned fish (actinopterygians) which lived from the Early Triassic to Early Jurassic. Redfieldiiforms were fairly typical Triassic fish in overall anatomy. They had a fusiform (streamlined, tuna-like) body shape with thick, ganoine-covered scales.
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]
The grooved mullet (Chelon dumerili) is a species of ray-finned fish, a grey mullet from the family Mugilidae.It is found in the coastal waters of the eastern Atlantic Ocean off the western coast of Africa, as far north as Mauritania, and into the western Indian Ocean.
Acanthopterygii (meaning "spiny-finned one") is a superorder of bony fishes in the class Actinopterygii.Members of this superorder are sometimes called ray-finned fishes for the characteristic sharp, bony rays in their fins; however this name is often given to the class Actinopterygii as a whole.
Ophidiiformes / ɒ ˈ f ɪ d i. ɪ f ɔːr m iː z / is an order of ray-finned fish that includes the cusk-eels (family Ophidiidae), pearlfishes (family Carapidae), viviparous brotulas (family Bythitidae), and others.
The big-scale pomfret (Taractichthys longipinnis) also known as the long-finned bream, is a species of marine ray-finned fish, a pomfret of the family Bramidae. It is found in the Atlantic ocean, at depths down to 500 metres (1,600 ft). This species is widely distributed in the Pacific, from temperate zones throughout the tropics.
The mineral texture of alligator gar scales consists of bundles of cross-plied hydroxyapatite minerals oriented towards the scale's surface. Ganoine or ganoin is a glassy, often multi-layered mineralized tissue that covers the scales , cranial bones and fin rays in some non-teleost ray-finned fishes , [ 1 ] such as gars and bichirs , as well as ...
The Elopiformes / ˈ ɛ l ə p ɪ f ɔːr m iː z / are the order of ray-finned fish including the tarpons, tenpounders, and ladyfish, as well as a number of extinct types.They have a long fossil record, easily distinguished from other fishes by the presence of an additional set of bones in the throat.