WATERVILLE, Maine, April 6 -- Colby College issued the following news: By Tomas Weber In December 2017, Robert Gastaldo's phone rang. Two graduate students in Canada had just discovered a strange-looking fossil of a tree in a quarry, on land that, hundreds of millions of years ago, had been at the bottom of a deep lake. This ancient tree had lived around 350 million years ago, 100 million years before the first dinosaurs, and it looked like nothing that either of them had ever seen. The geolo more PR