Meaning of actinopterygian | Babel Free

Definitions

Any of the ray-finned fish of the taxonomic class Actinopterygii.

Equivalents

Examples

“[…] actinopterygians have⟳ 'ray fins' which are supported by a series of narrow cartilaginous or bony rods called radials, while sarcopterygians have⟳ 'lobe fins' supported by a single basal bone and with muscles that can modify⟳ the posture of the fin.”

“The ear of all nonteleostean actinopterygian fishes (Grande and Bemis 1996) does not differ⟳ much from that of ratfish (considered by most an ancient line of cartilaginous fish⟳), with the notable exception of the position of the ultricular macula.”

“The otico-orbitotemporal region is formed by a single ossification in primitive actinopterygians but by many separate⟳ ossifications in advanced actinopterygians, expecially teleosts.”

“2004, M. L. J. Stiassny, E. O, Wiley, G. D. Johnson, M. R, de Carvalho, 24: Gnathostome Fishes, Joel Cracraft, Michael J. Donoghue (editors), Assembling the Tree of Life, page 416, The most basal of living actinopterygians are the bichirs (Polypteridae), a small group (11 spp.) of African fishes previously thought to be related to the lobefin fishes (sarcopterygians), or to form⟳ a third group.”

CEFR level