I assumed there'd be only a dozen of the horrible terrifying prehistoric monsters.

While many people think these prehistoric monsters are mythical creatures, they could really exist.

For more than a hundred years we have become familiar with reconstructions of extraordinary prehistoric monsters; their skeletons anchor our natural history museums.

There would be something terrific in dinosaurs, flying lizards, and prehistoric monsters.

They encounter carnivorous vines, giant prehistoric monsters, volcanic lava pits and whirlpools on the way, finally battling an ogre with the multiple heads of a dragon.