One of the dinos recently released in Ark Survival Evolved is the Diplocaulus, which is an amphibian and not a dino. This creature is of limited use to the high-level player who has learned to craft scuba gear, but for a player that has not reached a high enough layer to craft scuba gear, or wants to keep it primitive, the Diplocaulus is a great friend. The reason it is great, it is a good swimmer, does not require a saddle and most importantly you can use it like a living oxygen tank. It will allow you to dive deep to harvest oil nodes, silica pearls and other resources, without having to worry about running out of oxygen. There is a limit to the oxygen of the Diplocaulus and so eventually you and your tame can suffocate and drown.
The Diplocaulus resembles a giant newt and lives in the swamps of the Island and Center maps. This is the biggest problem for a low-level player, because the swamps are probably the most dangerous place next to caves. Expect to encounter: Sarcosuchus, Kaprosuchus, mega-piranha, leeches, Titian Boas, and clouds of Meganeura. Not to mention there are plenty of friendly creatures that will also kill you if your swings or shots go astray. If you are going to be chasing the Diplocaulus it would be a good idea to bring friends, whether they are tribe members, or tames. It is said that you can use the bola to stop them in their tracks, but I have not tested this.
I tamed my Diplocaulus by picking it up with a Quetzal and dropping it into a taming pen. This option seems easy, but on my second attempt I was attacked by a Kaprosuchus, nocked of the Quetzal and died in the swamp.
Since my Ark survivor is a high level one, and I have learned the scuba gear engrams, I really don’t have much use for the Diplocaulus, so it will just be another tamed creature in my collection. It would be a little different if these giant newts were great fighters, but they are not.