lobe-finned fish

[lohb-find]

noun

1. any fish that has rounded scales and lobed fins, as the coelacanth.

lobe-finned fish

1. Any of various fishes of the class Sarcopterygii, having paired 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 Devonian Period and are extinct except for the coelacanth and lungfish.

2. Also called sarcopterygian

3. Compare ray-finned fish See also crossopterygian

Example Sentences

These intriguing results indicate that water, glycerol, urea, and boric acid permeabilities are plesiomorphic features of Aqp10 water channels in all tetrapods and lobe-finned fish.

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Fish with fleshy fins supported at their base by a single bone, known as lobe-finned fish, moved into shallow water about 375 million years ago.

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It suggests that, contrary to Johanson's argument, the radials of lungfish and other lobe-finned fish are not all equivalent to digits.

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Such a bottleneck occurred around the origin of lobe-finned fish.

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Unlike amphibians and lobe-finned fish, amniotes aren't anchored to water by the need to lay their eggs there.

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