The Range Rider

Dick West's uncle Jed Perdue leaves him tied to a tree in the mountains to die of exposure. With Dick's death, Perdue would inherit a valuable ranch. Range Rider rescues him, then goes for help a few miles away where he meets Professor Hornbone. The professor is assembling dinosaur skeletons he is scavenging from tar pits on Dick's ranch. Range Rider and Dick have a showdown with Perdue and two henchmen in the building housing the assembled skeletons.