Dinosaur Expedition Born Free (恐竜探険隊ボーンフリー Kyōryū Tanken-tai Bōn Furī) is a TV series made by Tsuburaya Productions.
The show was the first in the Tsuburaya Dinosaur Trilogy and because Tsuburaya was filming Pro-Wres no Hoshi Azteckaiser, they could not have the show in live-action. Japan Sunrise did the animation. Paleontologist Ikuo Kobata criticized Tsuburaya for using costumes with the "Godzilla" posture, so Tsuburaya used stop-motion to have accurate dinosaurs.
A main inspiration for creating the series was the discovery of Taniwhasaurus (Ezo Mikasa Ryu) in 1976. At the time they thought the mosasaur was a tyrannosaur which explains the inaccurate Ezomikasa Dragon.
- Giant Ammonite
- Ezomikasa Dragon