A woman in prehistoric times gives birth to twins, one of whom is rejected by the tribe and adopted by a brontosaurus and a talkative pterodactyl.
Ron Venable
as O
John Graham
as Igua
Bob Kaliban
as Croak / No Lobes
Christopher Guest
as No Lobes
Clark Warren
as No Lobes
Mark Smith
as Narrator
Joseph Plewa
as Bone
Jonathon Schmock
as Slick
Jim Vallely
as Stewie Babcock
Bill Murray
as Dragon (voice)
Roger Carel
as Additional Voices
Arlette Thomas
as Additional Voices
