Tyrannosaur The Tyrannosaur , also known as Tyrannosaurus , T - Rex , T - Rexaur , is a recurring enemy in the " Final Fantasy " series , based off the dinosaur of the same name . It has alternately appeared as a living dinosaur or as a reanimated skeleton . Several other Tyrannosaurus - based monsters have appeared in the series as well . Appearances . " Final Fantasy " . The " Tyrannosaur " , also known as the " T Rex , " appears in the Great Desert and the forests around Lufenia . The Allosaurus , originally translated as Tyro , is a weaker form found in the same regions . " Final Fantasy IV " . The " Tyrannosaurus " or " T - Rex " is a monster found exclusively in the " Advance " and " Complete Collection " versions during Porom ' s trial . This enemy counters elemental magic with higher - powered spells of its own . " Final Fantasy V " . The " Tyrannosaur " , or " Tyrasaurus " , is an undead monster that the Warriors of Light battle in order to save a moogle . The creature can be defeated with a single Phoenix Down . " Final Fantasy VI " . The " Tyrannosaur " is a dangerous enemy with a high experience yield . It can cast Meteor , and is capable of surrounding even if the party is equipped with an Alarm Earring . " Final Fantasy VIII " . The " T - Rexaur " , " Archaeosaur " or " Archeodinos " is an extremely powerful foe that can be fought early in the game . Quistis Trepe uses this enemy to introduce the Escape command if Squall Leonhart is unfortunate enough to encounter one outside the Fire Cavern . They can also be found in the Balamb Garden training center , and on the Island Closest to Hell . " Final Fantasy XII " . The Tyrant genus of monsters are a class of enemies including the Archaeosaur , Tyranorox , and Wild Saurian . The Wild Saurian in particular is notable for its ability to level up to 99 by eating the local wolves , despite being found directly outside the starting location of Rabanastre . " Final Fantasy XIV " . Tyrannosaurs are indigenous to Dravania , particularly near the caverns of Mourn , with a similar creature called Archeosaurs inhabiting the Churning Mists . A closely related species are the Vinegaroons , who look similar to tyrannosaurs but possess bulky plates on its scales and uses different attack abilities . " Final Fantasy Legend II " . The T Rex is an enemy and also a possible monster that the party ' s monster unit ( s ) can transform into . " Final Fantasy Dimensions " . The Tyrannosaur is an enemy family in " Final Fantasy Dimensions " . These enemies resemble dinosaurs . The Torosaurus is a uniquely designed enemy who also resembles a dinosaur . The pictured enemy in this article is named Earth Raptor in English , referencing the velociraptor or one of a few related species , however its original Japanese name is " Earth Dragon " , a reference to the Earth Dragon from " Final Fantasy VI " . " Pictlogica Final Fantasy " . The " Final Fantasy V " incarnation of Tyrannosaur appears as an enemy . " Final Fantasy All the Bravest " . The Tyrannosaurus appears in " Final Fantasy All the Bravest " as an enemy encountered on the Troia Range . It uses Mad Rage and drops the Fire Lash . " Final Fantasy Record Keeper " . Tyrannosaur from " Final Fantasy VI " appears as an enemy in " Final Fantasy Record Keeper " , while Tyrannosaur from " Final Fantasy V " appears as a boss .