Examples from the Web for crossopterygian
With these remains are found also scales possibly belonging to a Crossopterygian fish (Eriptychius).
In the archaic tail, enameled scales, and cartilaginous skeleton the Crossopterygian shows its affinity with its Dipnoan ancestry.
It is not unlikely that the Crossopterygian gave rise to Amphibian and Dipnoan alike.
These are found in the garpike and in many genera of extinct Ganoid and Crossopterygian fishes.
The Ganoid differs from the Crossopterygian in having the basal elements of the paired fins small and concealed within the flesh.