I grew up with the classic Marx prehistoric playset. Nothing like today's more accurate offerings from Battat or the Carnegie Collection. These came with cavemen which I happily displayed with the dinos. Fauna from all eras of the Mesozoic through the Ice Age too. At the time didn't think it unusual to pit a T-Rex against a Dimetrodon or a wooly mammoth, or the cavemen for that matter. Fun while it lasted and actually miss that set.