Giganotosaurus
The Giganotosaurus was a lesser known cousin of the Tyrannosaurus, over which it was half a ton heavier, several metres taller and with even more jaw strength. Its brain, though, was only half the size of that of a T-Rex, implying that the Giganotosaurus was an intellectual lightweight.
The Giganotosaurus had larger and stronger forearms than most Theropod dinosaurs, but its primary weapon remained its mighty teeth. Giganotosaurus preyed on hundred-ton Titanosaurus herbivores, although it was possible that it was more of a scavenger than a killer. Giganotosaurus tracks were been found in groups, implying they sometimes moved in packs.
An adventurer confronted by a Gigantosaurus might have been able to escape becoming dinner by taking advantage of the Giganotosaurus by throwing a stone into a nearby bush or creating a bright pattern of flashing lights with a Sonic Screwdriver. (PROSE: Prehistory Repeating Itself [+]Loading...["Prehistory Repeating Itself (feature)"])