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‘Generally, osteolepiforms have homocercal, or even trilobate, tail fins.’
‘The current literature contains several hypotheses about the function of caudal fins of different shapes, and much of this discussion has focused on the difference between heterocercal and homocercal tails.’
‘The tail fin of most ray-finned fish, with the exception of sturgeons and paddlefish, is homocercal, nearly symmetrical about the midline.’
‘This caudal fin structure contrasts with the externally symmetrical homocercal morphology present in most teleost fishes such as bluegill sunfish.’
‘Both mammals and reptiles returning to the sea developed quite workable homocercal tails in very short order.’