Pellucidar (Janusz501's Version)

The Pellucidar is a subterranean "lost world" where dinosaurs and other prehistoric creatures survive. It has three different locations: the frost mountains where woolly mammoths, woolly rhinos, saber-toothed cats, cave bears, dire wolves and giant elks live, the tropical jungles where pterosaurs, sauropods, iguanodonts, ceratopsians, ankylosaurs and stegosaurs live and the lava fields where tyrannosaurs, dromaeosaurs and dimetrodons live.