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lobe-finned fish

[lohb-find] /ˈloʊbˌfɪnd/
any fish that has rounded scales and lobed fins, as the coelacanth.
Also called lobefin. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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lobe-finned fish in Science
lobe-finned fish  
Any of various fishes of the class Sarcopterygii, having fins that are rounded and fleshy, suggesting limbs. One group of lobe-finned fish are thought to be ancestors of amphibians and other land-dwelling vertebrate animals. They first appeared in the Ordovician Period and are extinct except for the coelacanth and lungfish. Also called sarcopterygian. Compare ray-finned fish. See also crossopterygian.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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