This is the full text of Sega's 13/1/2017 press release.

The ceaselessly sleepless team at Studio Wildcard today released a new content update for ARK: Survival Evolved on Xbox One and PlayStation®4 that adds a bevy of new beasts, and two expansive underwater environments to explore.

This new update brings the console versions of the massively popular survival game on-par with its PC version through v253, and includes two full-scale underwater caves that are progression oriented with artifacts, while unleashing five new creatures! The PlayStation®4 update also adds the “Procedurally Generated Maps” feature on-par with PC and Xbox One, which allows players to generate an infinite variety of new ARKs to experience. The update is free, and available now on Xbox Live and tomorrow on PlayStation Network.
 

New Dinos and Creatures!

Cnidaria Omnimorph: A combination of everything good and bad about various species of Jellyfish, the Cnidaria is too simple to tame or train, but tribes keep schools of them around for their bioluminescence and their ability to sting. Containing them in pools around a camp is a great way to make a barrier of swimming, stinging security that also illuminates the night. They also drop a special biotoxin which can be used to create shocking torpor darts and is 2x as powerful as regular ones.

Troodon Magnanimus: Outside of human beings, the Troodon might just be the most clever creature on the islands. You don't "tame" a Troodon, you earn its loyalty through its social nature and love of the hunt. While Troodon is considered a  smaller relative of the island's Raptors, they are no less dangerous, especially with their love of hunting at night.

Pegomastax Fructarator: Life ain't easy when you're at the bottom of the food chain on carnivore-filled islands, just ask the Pegomastax. This is a relatively harmless herbivore who prefers to live alone and gorges on just about any plants it can find. Far from the definition of "pretty," Pegomastax features a nasty looking beak (with tusks for extra effect!) and feathers, making him a unique sight on the island. Some tribes keep a few Pegomastax around, as they are excellent scavengers who collect an extraordinary quantity of seeds and berries, while also handily gathering the rare Flowers, Mushrooms, and other ingredients necessary to cook up unusual concoctions.

Tusoteuthis Vampyrus: A monstrous relative of the vampire squid, Tusoteuthis bears a closer resemblance to giant squids. It may be slow, but the aquatic Tusoteuthis is a horrific threat to anyone who dares get too close, using its tentacles to first grab, then crush...and then syphon the blood out of its hapless victims. Tribes will sometimes tame this nightmare of the deep in order to extract its unique ink, which contains oils that can be processed into fuels.

Therizinosaurus Multiensis: Built like a T-Rex, but completely tameable and a herbivore to boot, the Therizinosaurus is one of the strangest dinosaurs on the islands. Its claws allow it to perform both brute-force or delicate actions; from taking down enemies (though it would prefer to just leave them alone) to plucking leaves from a particularly tasty bush. Because of this ability, Therizinosaurus are always handy to have around for harvesting specific resources, or, when needed, decimating enemies in combat.