A caveman is a stock character representative of primitive man in the Paleolithic era or the broad prehistoric period known as the stone age. The popularization of the type dates to the early 20th century, when Neanderthal Man was influentially described as "simian" or ape-like. They are often portrayed co-existing during a time with saber-toothed cats, woolly mammoths, and (anachronistically) alongside dinosaurs.
The cavepeople on Dinosaurs
A pair of cavemen in the Primitive segments on Sesame Street
Mr. Moses and his students in a Sesame Street News Flash segment on the first day of school
Ernie and Bert in Bert and Ernie's Great Adventures: Cavemen
Father, mother and son in Nissin Cup Noodles commercials
Two cavepersons in the IBM film Rowlf-In
Cavepeople in Great Moments in Business History
Neandro in the Farscape episode "My Three Crichtons"