Geologists of JH: When Giant Buzzsaw Sharks Ruled the World!

Presentation: “When Giant Buzzsaw Sharks Ruled the World!” by Dr. Leif Tapanila, Director, Idaho Museum of Natural History & Professor of Geosciences, Idaho State University

Whorl-toothed sharks were the apex predators of oceans in the late Paleozoic, between 315 and 250 Million years ago. The Permian mass extinction ended their reign, soon to be replaced by giant reptiles of the Mesozoic. In this lecture I will present the last of the giant whorl-toothed sharks, a beast called Sarcoprion, found in the Permian coastal rocks of northeast Greenland. It's a story of deep time, good luck, and new technology that is revealing the largest fossilized shark skull of the Paleozoic Era!

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