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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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Wolfgang Amadeus Mozart (27 January 1756 – 5 December 1791) was a prolific and influential composer of the Classical period. Despite his short life, his rapid pace of composition resulted in more than 800 works representing virtually every Western classical genre of his time.
- 27 January 1756, Getreidegasse 9, Salzburg
- Mozart family
- 5 December 1791 (aged 35), Vienna
- Constanze Mozart
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Actinopteri / æ k t ɪ ˈ n ɒ p t ə r aɪ / is the sister group of Cladistia 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 .
The Actinopterygii, or ray-finned fishes, are the largest class of fishes. In existence for about 400 million years, since the Early Devonian, it consists of some 42 orders containing more than 480 families, at least 80 of which are known only from fossils.
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.
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 ...
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.
