Tyranno Lair

 is a location that appears in during Prehistory.

Because it is surrounded by lava, it is only accessible by air. It is home to the bosses Nizbel II, Black Tyranno, and Azala.

Crono and Ayla fly there by dactyl in order to rescue Kino and the villagers of Laruba from the Reptites. They then confront Queen Azala and the Black Tyranno. After they are defeated, Azala says that the red star in the sky will soon fall to Earth, causing mass devastation and years of cold climates.She chooses to stay behind when they leave. The red star falls to Earth and lands on the Tyranno Lair, turning it into a crater.

Tyranno Lair is also under Giant's Claw in the Middle Ages, and there are surviving Reptites and the Rust Tyranno.