Do these things spawn in Ark Survival Evolved? It's the only game mode I have...

Oasis type creature it was added in the adventure pack that released parallel to scorched earth. It is capable of reviving lost tames.

So it's a Megachelon who flew

Quetzal, but Megachelon

~ CPG (completely guessing off the description)

I dont get it, does it have wings? Everyones sayings literally a house that flys

To tame it you need to kill a creature and take its soul or whatever, then take that and put it in the oasisaurs inventory, this will start a mini game where you will protect the soul/dead creature until the oasisaur is tamed