Ichthyostegalia

Paraphyletic group of tetrapodomorphs

Ichthyostegalia is an order of extinct Tetrapodomorphs, representing the earliest landliving vertebrates. The group is thus an evolutionary grade rather than a clade. While the group are recognized as having feet rather than fins, most, if not all, had internal gills in adulthood and lived primarily as shallow water fish and spent minimal time on land.

This keyword could refer to multiple things. Here are some suggestions: