Hoop Pine (IMAGE) Penn State Caption This is a hoop pine (Araucaria cunninghamii) on the Atherton Tablelands, Australia. Close relatives of this conifer tree inhabited Patagonia 52 million years ago, although molecular dates suggested the group is less than half that age. Credit Peter Wilf Usage Restrictions Non commercial use only 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.