Robo-dinosaurs

Robo-Dinosaurs are robotic creatures which evolved from the trilobots. They were killed by a massive electromagnetic pulse coming from the star near the planetoid where they lived.

Trivia
There are only 4 "species" known.
 * Tyrannosaurus rex-bot
 * Triceratops-bot
 * Pteranosaurus-bot
 * Aquatic creature