New research helps to fill in questions about the so-called “Furongian gap” from about 497 million to 485 million years ago, when palaeontologists previously thought there were far fewer fossils than periods before or after it. “Palaeontologists have wondered whether this time of markedly less diversity of life could be linked to ocean chemistry, cooling [...] The post Forgotten Fossil Helps Rewrite Part Of Animal Evolution appeared first on Astrobiology .