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 fishSee 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.

From Science Daily

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.

From Science Magazine

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

From Scientific American

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

From Scientific American

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

From Washington Post