The Tri System is a group of planets in the Vegetarian Sector which are ruled by the triceratops. The planets include the strange world of Aggadon and others. It is located in the west of The Jurassic Quadrant and is known to be Arx's home, who was born on Tri Major, Chas was born on Tri Alpha and Abbiz was born on Tri Gamma. It is unknown that why Abbiz was Arx's niece when they were born on different planets of the Tri System.