Doraemon Movie 01: Nobita no Kyouryuu
English title: Doraemon the Movie: Nobita's Dinosaur
Japanese title: 映画 ドラえもん のび太の恐竜
Alternative titles: Doraemon: Nobita no Kyoryuu
Type: Movie
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Mar 15, 1980
Duration: 1 hr 32 min
Rating: PG - Children
Studios: Shin-Ei Animation
Genres: Adventure, Comedy
Themes: Time Travel

Nobita finds a fossilized dinosaur egg by accident, and with the help of Doraemon's tools, they hatched the egg and began raising the dinosaur. Knowing that they can't keep the dinosaur forever, Nobita was forced to send it back to prehistoric times where a group of hunters from the future threatens to endanger the dinosaurs. Determined to save the dinosaurs from the claws of the hunters, Doraemon and the gang returns to the past and sets out in a prehistoric adventure. 

(Source: ANN)