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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 that comprise over 50% of living vertebrate species.
- Teleostei
Teleostei (/ ˌ t ɛ l i ˈ ɒ s t i aɪ /; Greek teleios...
- Slender-spined Porcupine Fish
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Actinopterygians are the largest class of vertebrates. There are nearly 25,000 species. They can be found in both fresh water and marine environments from the deep sea to the highest mountain streams. Most of the living species are teleosts, which are late-comers to the fish domain.
Actinopterygii (the plural form of Actinopterygius) is commonly placed as a class of vertebrates (ITIS 2017; Jonna 2004; Nelson 1994), generally with the parent taxon Osteichthyes (the bony fish) listed as a superclass.
- Gnathostomata
- Chordata
- Animalia
- Osteichthyes
Actinopterygians, or ‘ray-finned fishes,’ are the largest and most successful group of fishes and make up half of all living vertebrates.
Actinopteri / æktɪˈnɒptəraɪ / is the sister group of Cladistia ( bichirs) in the class Actinopterygii (ray-finned fish). Dating back to the Permian period, the Actinopteri comprise the Chondrostei ( sturgeons and paddlefish ), the Holostei ( bowfins and gars ), and the teleosts.
Actinopterygii (; 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 that comprise over 50% of living vertebrate species.
Ray-finned fishes constitute a major source of food for millions of people. Click on the buttons below to find out more about the Actinopterygii. For more information, try the Actinopterygii pages from the Tree of Life at the University of Arizona.
