Origin of crossopterygian
Examples from the Web for crossopterygian
Historical Examples of crossopterygian
These are found in the garpike and in many genera of extinct Ganoid and Crossopterygian fishes.
In every modern Dipnoan, Crossopterygian, and Ganoid the air-bladder has an effective pneumatic duct.
The Ganoid differs from the Crossopterygian in having the basal elements of the paired fins small and concealed within the flesh.
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.