The plant life of the Cretaceous was quite different to that of today. For example, temperate rainforest grew close to the poles, which back then were ice free. 'We have evidence from West Antarctica ...
Scientists knew the mudstone had formed in the mid-Cretaceous, 92 to 83 million years ago. The amber proved that a wet, swampy forest existed in the South Polar Region only 90 million years ago.
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