- Science Marches On: Yup, even such a recent documentary couldn't manage to avoid it.
- For instance, some recent studies indicate that the famous fossil of a Tenontosaurus surrounded by several Deinonychus isn't actually proof of pack-hunting raptors (as it's been believed for decades), but rather evidence of random raptors coming together to munch on a carcass.
- Another common error is giving the Majungasaurus well-developed, if still very short arms. They should be underdeveloped and absurdly stubby.
Trivia / Prehistoric Assassins