Origin of Lobe-Finned Fish (With Diagram) | Vertebrates | Chordata | Zoology

Crossopterygians or lobe-finned fish are now represented only by fossils. They were very dominant in Devonian times about 280 million years or more ago and became extinct by the end of Cretaceous. However, several living specimens of a specialised side branch, the Coelacanths, have been found in recent years since 1938 near Comoro Islands between Africa and Madagascar. Dr. J.L.B. [...]