Coo: Tooi Umi kara Kita Coo
Japanese title: Coo 遠い海から来たクー
Alternative titles: Coo of the Far Seas, Coo: Come From a Distant Ocean Coo
Type: Movie
Source: Novel
Episodes: 1
Status: Finished Airing
Aired: Dec 19, 1993
Duration: 1 hr 56 min
Rating: PG-13 - Teens 13 or older
Studios: Toei Animation
Producers: Kadokawa Shoten, Victor Entertainment, Pony Canyon, Nippon Television Network
Genres: Adventure, Drama, Mystery, Slice of Life

Obata Yousuke lives on Pagopago in the Fiji archipelago with his father Tetsuo, a specialist in oceanographic biology. After a storm strikes the island, Yousuke rides to the lagoon with his Jet Ski and finds a strange baby dinosaur there. He takes it to his father's laboratory and names it Coo.

Coo grows and seems to be a large marine reptile (a baby plesiosaur) which lived there some 65 million years ago. But Coo soon becomes an object of interest for the French secret service, assigned to protect the nuclear interests of France in that otherwise peaceful part of the world. 

(Source: AniDB)