Actinopteri
Template:Short description Template:Automatic taxobox Script error: No such module "Portal". Actinopteri (Script error: No such module "IPAc-en".) 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.[1]
Characters of Actinopteri include [2] paired fin structure, a single dorsal fin, fulcra, a large median gular and numerous branchiostegals, ganoid scales, and a valvula cerebelli in the brain.
Classification
The following cladogram[3][4][5][6] summarizes the evolutionary relationships of extant Actinopteri. Divergence time for each clade in mya are based on:[7]
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References
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