Ordovician Hurricane Map (IMAGE) Durham University Caption Ordovician map: Laurentia in the Late Ordovician. The gray line shows the 6000 km long belt that the researchers interpreted as the position of the Equator some 450 million years ago. The belt goes across northern Greenland, through central Canada, and continues to southwestern United States (Nevada and Utah). Credit Jin et al. 2012 (<i>Geology</i>). Fig. 1, Geology, doi: 10.1130/G33688.1., © The Geological Society of America. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.