Thaddeus' Aurorus is a rock/ice-type Pokémon owned by Thaddeus.
Aurorus was revived by Thaddeus from a fossil, along with Amaura. Aurorus watched Amaura, who played with the heroes. Since Team Rocket failed to capture Aurorus, they took off with Amaura. Aurorus was worried and went off to search for Amaura. Along with the heroes, Aurorus battled Team Rocket, using Blizzard to freeze Meowth. After stabilizing Amaura's temperature, Aurorus was taken back to the lab, where the climate was fit for it and Amaura.