Dino Boy in the Lost Valley is an American animated television series produced by Hanna-Barbera Productions. It first aired on CBS from September 10, 1966, to September 16, 1967, and continued reruns until September 7, 1968. The series was composed of two unrelated segments, Space Ghost and Dino Boy in the Lost Valley. The series was created by Alex Toth and produced and directed by William Hanna and Joseph Barbera. Sometimes it is alternatively called Space Ghost & Dino Boy, to acknowledge the presence of both shows.