Ravasaur
Ravasaurs are hostile level 48-49 raptors found in Un'Goro Crater.
Notes
Due to that fact that there are Horde-friendly troll NPCs titled "Ravasaur Trainers" scattered in Un'Goro, the Ravasaur is said to be the equivalent to the rare epic mount of the Alliance, the Wintersaber, but it has not yet been implemented in the game.