New remains of a 53-million-year-old polar forest have been unearthed near Macquarie Harbor in western Tasmania, unveiling previously unknown ancestral origins of rainforest plants in the southern polar region. New remains of a 53-million-year-old polar forest have been unearthed near Macquarie Harbor in western Tasmania, unveiling previously unknown ancestral origins of rainforest plants in the southern polar region. Plants & Animals Paleontology & Fossils Phys.org – latest science and technology news stories