a forgotten "sentai" show, this is from Tsuburaya in 1978. the dinosaur suits are pretty well done, actually. there's evil aliens and a lot of great effects and action. I wish there was more to the clip than just the opening, since you miss seeing the superhero in action.
still, it's well worth seeking out. it's better than the previous two dinosaur shows from Tsuburaya, Born Free Dinosaur Expedition and Aizenborg (not that these shows are bad, this one is just better).