Animals built reefs 550 million years ago, fossil study finds
Thursday, June 26, 2014 - 20:00
in Paleontology & Archaeology
It is a remarkable survivor of an ancient aquatic world -- now a new study sheds light on how one of Earth's oldest reefs was formed. Researchers have discovered that one of these reefs -- now located on dry land in Namibia -- was built almost 550 million years ago, by the first animals to have hard shells.