Moogle's right. The forest West of Narshe is shaped like a dinosaur ... from the South, it's shaped like a dinosaur (or alligator) head facing East. From the North, it looks like a Brontosaurus or something, with its body facing to the West (right) and its head turned back over its body looking East (left). In there, you'll either fight one Tyrannasaur, be pincer-attacked by two of them, or hit a Brontosaur. (Can't avoid the pincer-attacked with any Relics or anything, they'll happen anyway.) If you took the Ragnarok Magicite, it will usually transform (transmorph?) either of them. You can steal Ribbons from the Brontosaurs, and sometimes they drop Economizers.