An international research project has discovered three extinct walnut species in the Canadian Arctic.
Two University of Saskatchewan scientists were part of the team that found the mummified walnut remains in an area covered by rainforest 45 million years ago. The walnuts were identified by using CT technology.
Dr. James Basinger is a professor emeritus of geological sciences at the University of Saskatchewan. He says the remains were still rooted in the soil —more than 3,000 kilometres away from the closest living tree.

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