Before the main events of the series, it was one of the very first dinosaurs summoned and used to battle by Dr. Z, others being Terry, Acrocanthosaurus, and Spiny. Its card was, along with his Move Card, activated during a snowball fight in Russia when its Card Capsule was accidentally thrown into an ice fisherman's hole on a frozen lake. It slept in a train car on the Trans-Siberian Railway that the D-Team was trapped in, lulled to sleep through Paris' singing. After the train was stopped and it woke up, Chomp, Ace, and Paris were summoned to fight him, but they were interrupted by Terry. He used Volcano Burst against Ampelosaurus, but it used its tail to slam into him, deflecting the attack. It then used Aqua Vortex to defeat Terry, but Chomp weakened it with Electric Charge. Seth defeat