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Actinopterygii. Actinopterygii ( / ˌæktɪnɒptəˈrɪdʒiaɪ /; 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]
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Teleostei (/ ˌ t ɛ l i ˈ ɒ s t i aɪ /; Greek teleios...
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Fish - Actinopterygii, Ray-Finned, Aquatic: Class Actinopterygii (ray-finned fishes), in existence since the Early Devonian, is the largest class of fishes with about 26,900 living species. Actinopterygians comprise three evolutionary radiations: Chondrostei, holostean, and Teleostei. Ichthyologists emphasize the skeleton in classification, but studies also include head and body length, teeth ...
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The Actinopterygii is the class of ray-finned fishes . The ray-finned fishes get their name from the fact their fins are webs of skin held by bony or horny spines ("rays"). This is different from the fleshy fins of the fish in the Sarcopterygii. Ray-finned fish first appeared in the Silurian period . Actinopterygians are the largest class of ...
Actinopterygii, is a major taxonomic class (or subclass) of fish, known as the "ray-finned fishes," whose diverse number of species includes about half of all known living vertebrates and 96 percent of all fish species. The actinopterygians include the most familiar fish, such as sturgeons, gars, eels, carp, herrings, anchovies, catfishes ...
Actinopterygians, or ‘ray-finned fishes,’ are the largest and most successful group of fishes and make up half of all living vertebrates. While actinopterygians appeared in the fossil record during the Devonian period, between 400-350 million years ago (Ma), it was not until the Carboniferous period ...
The Origin of Vertebrates Marc W. Kirschner, iBioSeminars. 150 Million Years of Fish Evolution in One Handy Figure ScientificAmerican , 29 August 2013. Age Of Fishes Museum Archived 17 January 2020 at the Wayback Machine , Canowindra - a permanent exhibition some of the best of the thousands of fossils dating from the Devonian Period found nearby.
Actinopterygii. : Life History and Ecology. While everyone knows that fish live in water and breathe through gills, the simile "like a fish out of water" does not always apply to ray-finned fish. A few, like the walking catfish and the mudskipper, are able to crawl about on land, to find food or new habitats. Some others, like the Siamese ...
