Flintstones! Meet the Flintstones! They're a homo erectus family. Taking what we know of primitive man, we can see that the Flintstones would be a far different show if treated with scientific accuracy. For example, 800,000 year old bones from the Gran Dolina cave in Spain tells us that cavemen were common cannibals. Look out, Barney! And where's Dino? He died MILLIONS OF YEARS EARLIER.