Humankind is a continuous experiment

I am with you Jim, but would caution the anthropological community to be cautious before declaring a new system. All our knowledge, scientific or otherwise, is acquired through our senses, and we know our senses can be fooled, it is a safe bet that, while there may be universal truth, a God, a scientific theory of everything, we can never be certain of any of it, at least not in this life. As a result, they can bicker and argue about whose theory is correct, but short of putting God or gods back into the equation, and asking Him, or Her, or them, it is not only a puzzle the picture of which we do not have, but as all the pieces are so similar, and generally damaged, even when they DO fit together, often we find they SHOULD not. Brontosaurus is a prime example. When I was young, we were taught about this huge dinosaur, the  existence of which was taken as fact, until more pieces of the puzzle came along and someone realized “hey, this is not one species at all, but parts from two other known species, cobbled together into a third.” My point is, like you, I am all for re-assessing the current system, as long as they do not come out and say the earlier theories were wrong, this one is right, we know this to be true, or factual. After all, children born with extra limbs, dwarfism, people with tails, or webbed fingers and toes, these are not unheard of. Are these “experiments” of nature, or rather, one off/rare conditions which occur more by accident? I agree with you, it is a good thing to keep the books open on the subject, but caution against being too quick to claim a new species or sub species, every time a fragment of bone is found. Keep studying it, have new theories. But leave it at that... or build a time machine and go back to check....