About Diplocaulus
Tamed level 450 for breeding.

There are only a few uses for tamed Diplocaulus. It is primarily kept for the (rather disgusting) practice of employing a Diplocaulus as an oxygen bag. Diplocaulus stores air in the bladders of its head, and divers can suck from these bladders to take deep breaths while submerged, supporting long-term underwater exploration without the use of external gear. Surprisingly, Diplocaulus is also extremely efficient when it comes to hunting Trilobites. -Helena