ray-finned fish


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Related to ray-finned fish: lobe-finned fish

ray-finned fish

(rā′fĭnd′)
n.
Any of various fishes belonging to the class Actinopterygii, having fins supported by long rays of bone. The ray-finned fishes are the largest group of fishes, comprising over 20,000 species. Also called actinopterygian.
References in periodicals archive ?
Dr John J Wiens, Associate Professor in the Department of Ecology and Evolution at Stony Brook University, and student Greta Carrete Vega examined the evolutionary and ecological causes of the low species numbers of marine environments by studying the biodiversity of ray-finned fish, the most species rich group of marine vertebrates, containing 96 percent of all fish species.
Other papers present analysis of finds, including Mesozoic vertebrate footprints, a ray-finned fish assemblage, and a number of different kinds of dinosaurs.