sasquatch2 sasquatch2:
According to continental drift theory, Pangea/gondwanda and all that, antarctica/australia have visited both poles several times.
Antarctica was ice free and forested until about 43 million years back...so fosilized stuff on Ellesmere Island is difficult to interpret because we don't really know where it has been.
About a billion years ago, the Earth entered a sequence of ice ages that broke all the assumed rules. Their marks are visible on most of the worlds landmasses. Even wierder is the evidence that all the glacial of that period seems to have occurred in tropical or sub-tropical regions----no where near the poles.
Indeed. The Quelccaya ice cap is a tropical glacier.