Actinopteri
Superclass of ray-finned fishes (Actinopterygii)
Nº Q343460 ★
Common · Nature
Actinopteri
Superclass of ray-finned fishes (Actinopterygii)
Actinopteri () 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; in other words, all extant ray-finned fish other than the bichirs.
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From Wikipedia
Actinopteri () 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; in other words, all extant ray-finned fish other than the bichirs. In this clade the lungs have evolved into a swim bladder. Characters of Actinopteri include paired fin structure, a single dorsal fin, fulcra, a large median gular and numerous branchiostegals, ganoid scales, and a valvula cerebelli in the brain.
Text: Wikipédia, CC BY-SA 4.0. · Image: USFWS (Public domain) ·
