Origin of dipnoan
Examples from the Web for dipnoan
Historical Examples of dipnoan
Interest notes on Dipnoan fin characters have been given by Traquair.
In every modern Dipnoan, Crossopterygian, and Ganoid the air-bladder has an effective pneumatic duct.
It is not unlikely that the Crossopterygian gave rise to Amphibian and Dipnoan alike.
In the archaic tail, enameled scales, and cartilaginous skeleton the Crossopterygian shows its affinity with its Dipnoan ancestry.
The dipnoan and ganoid traits one by one are more or less completely lost.