Erik Gulbranson: Uncovering Antarctica’s fossil forests
During Antarctica’s summer, UW-Milwaukee geologists Erik Gulbranson and John Isbell climbed the McIntyre Promontory’s frozen slopes in the Transantarctic Mountains. High above the ice fields, they combed the mountain’s gray rocks for fossils from the continent’s green, forested past. By the trip’s end, the geologists had found fossil fragments of 13 trees. The discovered fossils reveal that the trees are over 260 million years old, meaning that this forest grew at the end of the Permian Period, before the first dinosaurs. “People have known about the fossils in Antarctica since the 1910-12 Robert Falcon Scott expedition,” said Gulbranson, a...
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