Kaseki Dorobou to Kyouryuuseki
English title: Fossil Thief and the Dinosaur Stones
Japanese title: 化石ドロボウと恐竜石
Alternative titles: Creator's World Project 4
Type: ONA
Source: Original
Episodes: 1
Status: Finished Airing
Aired: Mar 2011
Duration: 6 min
Rating: G - All Ages
Genres: Adventure
Demographics: Kids

The dinosaur fantasy revolves around a 12-year-old named Yuta and Gobi — a moving fossil. The two embark on a journey with Yuta's friends to chase a fossil thief and find Gobi's stolen fossil mother. 

(Source: ANN)