[5] The series has been adapted into an anime television series produced by Sunrise, Ancient Ruler Dinosaur King DKidz Adventure (古代王者恐竜キング Dキッズ・アドベンチャー, Kodai Ōja Kyōryū Kingu Dī Kizzu Adobenchā) that aired between February 4, 2007, and January 27, 2008, in Japan.

A second series called Ancient Ruler Dinosaur King DKidz Adventure: Pterosaur Legend (古代王者恐竜キング Dキッズ・アドベンチャー翼龍伝説, Kodai Ōja Kyōryū Kingu Dī Kizzu Adobenchā: Yokuryū Densetsu) aired between February 3 and August 31, 2008, in Japan.

An evil organization called the "Alpha Gang", led by the nefarious Dr. Z, traveled back in time to hunt down the dinosaurs and use them to take over the world.

It is up to Max and Rex to travel around the world, defeating Dr. Z and the Alpha Gang while hunting down the dinosaurs (later, the story varies as the arcade game machine keeps on upgrading).

In the first season, Max Taylor and his friends Rex Owen and Zoe Drake form the D-team in an effort to control the dinosaur cards.

Ed is slow to understand things, is shorter and often jinxes the team by predicting good fortunes or likely bad outcomes.

The Alpha Gang plans to obtain the Dinosaur Cards that were lost when their time machine exploded and stranded them in the present.

This causes the Alpha Gang and D-Team to join forces against the Space Pirates in their plot to obtain cosmic jewels known as the Cosmos Stones.

Rex, his parents, and the Alpha Gang leave to their own time as the Spectral Space Pirates are floating around in a pod.