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actinopterygian
[ ak-tuh-nop-tuh-rij-ee-uhn ]
adjective
- belonging or pertaining to the Actinopterygii, a group of bony fishes.
noun
- an actinopterygian fish.
actinopterygian
/ ă′tə-ŏ′tə-ĭ′ŧ-ə /
- See ray-finned fish
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51Թ History and Origins
Origin of actinopterygian1
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Example Sentences
Examples have not been reviewed.
The summary continues: "Remarkably, fossil fishes recovered from the same deposits as the new pycnodontiform show injuries to fins and fin bases. As a marine piranha-like fish contemporary with dinosaurs, it is the oldest known flesh-eating actinopterygian, revealing remarkable convergent evolution with modern piranhas."
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Major adaptive levels in the evolution of the actinopterygian feeding mechanism.
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Cheirolepis, found in the Old Red of Scotland and Canada, is the only Devonian representative of the actinopterygian fishes.
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