Riversleigh Platypus

Deathtouch
This species is characterized by a skull and several scattered teeth. Physically, it would have looked much like a modern platypus, although significant differences are few. Obdurodon dicksoni grew profoundly larger than the modern platypus. Its beak has an oval hole surrounded by bones in the center, whereas the modern platypus' beak has a V-shape and no longer surrounded by bones.