Dunkleosteus With Movable Jaw 1:40 Scale (Deluxe)CollectA Dunkleosteus Deluxe 1: 20 Scale Figure with Movable Jaw Realistic Prehistoric Fish Toy for Educational Play Dunkleosteus means "Dunkles Bone" and is named after paleontologist David Dunkle. It was a big predatory pre historic fish that lived during the Late Devonian period (around 380 360 million years ago). Dunkleosteus were 30ft long and weighed 3 4 tons. They had a hard armor plating, a bulging head, and big, toothless jaws. Hand painted