They were taken from stock footage recycled from the film One Million B.C. (1940).
Lost | Lost (TV series) | Paradise Lost | Lost in Space | Raiders of the Lost Ark | The War of the Worlds | lost | lost film | In Search of Lost Time | The War of the Worlds (radio) | The Lost World | Home Alone 2: Lost in New York | Love's Labour's Lost | Lost Boys of Sudan | Land of the Lost | The War of the Worlds (1953 film) | The Lost Boys | The Lost World: Jurassic Park | Lost Highway | Lost (2004 TV series) | Land of the Lost (1974 TV series) | The War of the Worlds (novel) | The Lost Cabin and the Mystery Trees | Ten Lost Tribes | Lost Your Shot | Lost in Yonkers | Lost Dogs | Jeff Wayne's Musical Version of The War of the Worlds | Homeward Bound II: Lost in San Francisco | Lost Planet of the Gods |