A caveman was a being who inhabited a cave, often associated with primitive humanoid cultures. Groups of cavemen often united into tribes armed with spears or cudgels and dressed in animal skins. They sometimes created cave paintings.
In the Stone Age on Earth, at least two caveman tribes were led by Vandar, an immortal who had trapped Q and used him as a genie. As a result, the cavemen were armed with spears that shot energy beams. (TOS - Legion of Super Heroes comic: "Issue 6")
Germal was raised in a cave on Hercula. Her people, the Yerba, were considered wild animals by the Herculese, who kept them in zoos and often used them for slave labor. (TOS comic: "The Animal People")
- TOS episode & Star Trek 4 novelization: All Our Yesterdays
- TOS - The Yesterday Saga novel: Yesterday's Son
- TOS - Legion of Super Heroes comic: "Issue 6"
- TOS comic: "The Cosmic Cavemen"
- TOS comic: "Child's Play"
- TOS comic: "The Animal People"
- TOS comic: "And a Child Shall Lead Them"