The trontoshell was a tremendously large animal species that lived on the planet Koboh. Their skin was brown and they possessed a green, turtle-resembling shell on their backs, a noticeable fin atop their heads, and elongated necks. Following their crash landing on Koboh in 9 BBY, Cal Kestis and BD-1 observed a trontoshell.
The trontoshell's initial appearance occurred in a gameplay preview for the 2023 video game Star Wars Jedi: Survivor, which was released by IGN.