I'm all for that,Loved that Flic.

In 1900 Mexico a traveling Wild West show comes into possession of a dog-sized miniature horse that the show's female owner, T.J. Breckenridge, hopes will reverse her sagging economic fortunes. While she rekindles a romance with an old flame, entrepreneur Tuck Kirby, British paleontologist Professor Bromley and gypsy witch-woman Zorina plot to steal the miracle horse. Zorina wants the creature returned to its home in the "Forbidden Valley" to forestall the curse of the "Evil One", Gwangi, from loosing death upon the land. The professor's motive is to follow the gypsies in order to discover its place of origin. He alone recognizes the tiny horse for what it really is ? an Eohippus, a living member of a species that supposedly died out 50 million years ago. And where there's one Eohippus there's bound to be more.
When the theft is discovered Tuck rides out after the gypsies; T.J. and her foreman/ringmaster Champ Connors saddle up a posse and join the pursuit. They track the thieves to the Forbidden Valley, where they stumble upon a prehistoric world straight out of an Edgar Rice Burroughs novel. After a brush with a hungry pterodactyl (who prefers Mexican for dinner) the cowboys meet Gwangi himself, a reptilian leviathan with very big teeth. (It's never mentioned in the film but the beast is supposedly an Allosaurus, smaller cousin to the T-Rex.) Plans to capture some of the valley's fauna for the show are instantly forgotten as the group scrambles to escape with their lives. But a lucky break turns the tables and presents T.J. and Company with the ultimate prize. The mighty Gwangi will doubtless be the greatest attraction in the history of show business... provided he doesn't break out of his cage and go rampaging through town, that is. That would be very bad for business.