Kaseki Dorobou to Kyouryuuseki
English name: Fossil Thief and the Dinosaur Stones
Genres: Adventure
Type: ONA, Episodes: 1
Aired: Mar-11
Source: Unknown
Rating: G - All Ages
Synopsis:
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)