Pterardon is a giant pteranodon-like Kishiryu from Kishiryu Sentai Ryusoulger. He serves as one of the ancient mechanical dragons allied with the Ryusoulgers, helping them in battle and transportation. Pterardon is associated with aerial combat and mobility, often supporting the team through flight and powerful attacks from the sky. As a Kishiryu, he plays the role of a loyal partner and a vital combat asset in the series, contributing to the heroes' ability to face powerful monsters and protect the Earth.