The identity of Power Rangers Dino Charge‘s Silver Ranger is finally revealed thanks to Canal J, a French TV station that airs the show in France.
The Silver Ranger is Zenowing, Keeper’s former apprentice. He went to Earth the asteroid, and at the time, he and his dinosaurs went extinct. At the end of each battle, he leaves behind Zord in order to protect the Energems that he didn’t find yet.
[Source: Morphin Legacy]