Large-mouthed fish was top predator after mass extinction
Wednesday, July 26, 2017 - 11:32
in Paleontology & Archaeology
The food chains recovered more rapidly than previously assumed after Earth's most devastating mass extinction event about 252 million years ago as demonstrated by the fossilized skull of a large predatory fish called Birgeria americana discovered by paleontologists from the University of Zurich in the desert of Nevada.