Deep-sea extinction discovered

Date: 1/8/2001

Auckland palaeontologist Dr Bruce Hayward has discovered a prehistoric extinction event among tiny organisms which lived in ocean floor sediment off the east coast of New Zealand. Working on core samples from a number of deep-water sites, Dr Hayward calculated that more than 50 species of microscopic, shell-bearing, single-celled protozoa became extinct during a period of ice ages between 600,000 and one million years ago.

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