Pterichthyodes
Pterichthyodes Pterichthyodes is a genus of placoderm fishes from ... Darwin brought forward his theories on evolution. Pterichthyodes had heavily armored heads and front bodies ... had grinding plates rather than teeth. The Pterichthyodes are distinguished easily from other placoderms by ... of fish, the Actinopterygii. The appearance of Pterichthyodes is sufficiently reminiscent of a modern ...
http://en.wikipedia.org/wiki/Pterichthyodes - 3k - Cached - Similar pages