Wellington, July 30 : A new study of 42 million year old fossils in New Zealand shows a greenhouse climate with warmer seas and little or no ice in Antarctica.
The study, based on analysis of fossilised micro-organisms at Hampden Beach, near the Moeraki Boulders in North Otago, suggests that Antarctica at that time was yet to develop extensive ice sheets.
Back then; New Zealand was about 1100km further south, closer to Antarctica, at the same latitude as the southern tip of South America.
But, the researchers found that the water temperature was 23 degree Celsius – 25 degree Celsius at the sea surface and 11 degree Celsius – 13 degree Celsius at the bottom.