Trius
From Transformers Wiki
Trius (トリアス Toriasu) is a planet. It has its own stable in the Universal Sumo Association.
Fiction
Beast Wars II cartoon
The Jointrons were sent to protect Trius on orders from Maximal headquarters. Their ship broke down and the trio were forced to land on Gaia. It was probably for the better. The Combined Giant, Tripledacus