Ravasaur
From WoWWiki
Ravasaurs are hostile level 48-49 raptors found in Un'Goro Crater.
Notes
Due to that fact that there were once Horde-friendly troll NPCs titled Ravasaur Trainers scattered in Un'Goro, the Ravasaur was said to be the equivalent to the rare epic mount of the Alliance, the wintersaber, but it had not yet been implemented in the game. However, with the Ravasaur Trainers removed from the game, it is unlikely Ravasaur mounts will ever be availible.
