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Encyclopedia > Actinopteri

Eukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Actinopteri


Actinopteri are related to sturgeon. Dating back to the Permian period, the Actinopteri are comprised of the Chondrostei (sturgeons and paddlefishes) and the Neopterygi (bowfin, gars, and teleosts). Modern actinopterygians generally feed using a suction mechanism, with the mouth parts forming a tube. Prey are drawn in, and then masticated for consumption. The Actinopterygii are the "ray-finned" fishes. The Actinopter group consists of the descendants of the most recent common ancestor of the sturgeons and teleoststains, and includes:



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Two Carboniferous fine-eyed palaeoniscoids (Pisces, Actinopterygii) from Bear Gulch (USA) Journal of Paleontology - ... (877 words)
Comparisons with other Palaeozoic actinopterygians show that Kalops is a Palaeoniscimorpha (=basal Actinopteri sensu Patterson).
As in previous articles (e.g., Poplin and Lund, 2000), we use the term "Palaeon-- iscimorpha" (Lund et al., 1995) as a strict synonym of "Basal Actinopteri" sensu Patterson, 1982.
Discussion.-Since, at this time, there is no consensus among paleoichthyologists about a classification of Palaeoniscimorpha, we give for Kalops a diagnosis that utilizes not only its generic characters, but also those of Actinopterygii, Actinopteri and Palaeoniscimorpha (see discussion).
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