Horonderthal

Barbaric Machine Clan Horonderthal is one of a clan of ancient machine beasts that existed in prehistoric times and a major antagonist in episodes 34 and 35 of Engine Sentai Go-onger.

History
65 million years ago, Horonderthal and his clan exterminated the dinosaurs on Earth and did battle with Engines K-line and L-line before being sealed in a mountain.

In the present day, Horonderthal was sought out by Gaiark's Land Pollution Minister Yogostein with the assistance of Drill Banki. Yogostein attempted to revive him but inadvertantly released the Engines instead. However, Yogostein eventually found Horonderthal's exact location and released him to do battle with Kyoretsu-Oh. Despite the enhancements he received from the Gaiark he was ultimately destroyed by Engine-Oh G12. After Horonderthal's demise, Yogostein would take his power to upgrade himself.