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Actinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from actino- 'having rays' and Ancient Greek 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]
Fossil of Chondrosteus acipenseroides from Lyme Regis Strongylosteus hindenburgi fossil from Posidonia Shale, Staatliches Museum für Naturkunde Stuttgart. Chondrosteidae / ˌ k ɒ n d r oʊ s t i ˈ aɪ d iː / is a family of extinct marine actinopterygian fishes, known from the Early Jurassic of Europe.
Chondrostei is a group of non-neopterygian ray-finned fish.While the term originally referred to the paraphyletic grouping of all non-neopterygian ray-finned fish, it was redefined by Patterson in 1982 to be a clade comprising the Acipenseriformes (which includes sturgeon and paddlefish) and their extinct relatives.
In the Book of Proverbs, the tree of life is associated with wisdom: "[Wisdom] is a tree of life to them that lay hold upon her, and happy [is every one] that retaineth her." [29] In Proverbs 15:4, the tree of life is associated with calmness: "A soothing tongue is a tree of life; but perverseness therein is a wound to the spirit." [30] [31]
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.
Acropholis stensioei (fossil at the Geological Museum in Copenhagen) is a taxon referred to Palaeonisciformes based on superficial resemblance with Palaeoniscum. The systematics of fossil and extant fishes has puzzled ichthyologists since the time of Louis Agassiz, who first grouped all Palaeozoic ray-finned fishes together with Chondrostei (sturgeons, paddlefishes), gars, lungfishes, and ...
Cladistia is a clade of bony fishes whose only living members are the bichirs of tropical Africa. [1] Their major synapomorphies are a heterocercal tail in which the dorsal fin has independent rays, and a posteriorly elongated parasphenoid.
Clupeiformes / ˈ k l uː p iː ɪ f ɔːr m iː z / is the order of ray-finned fish that includes the herring family, Clupeidae, and the anchovy family, Engraulidae.The group includes many of the most important forage and food fish.
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