IF and it's a big if, we were on a non rotating yet orbiting planet the dinosaur would not have needed an inner ear. It's only on a rotating planet such an instrument of balance would be needed.Once again with a broad brushstroke, how else could creatures so massive move about a rotating planet or even stand. And if orbital conditions aren't so different how is the elephant so tiny in comparison as the largest land mammal. Yet in the sea where body mass is bouyed i doubt that whales have ever been much larger. So back to the bone collecters, if other bones and configurations happen in limbs etc why not an inner ear. And don't shout at me if it's illogical, but i feel it also a point of not shutting your own minds up in the same sense of self rightousness as the theists. Just a layman asking questions if one kind of evolving and adaptation, if on form why not the other.