Large-mouthed fish was top predator after mass extinction

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Possible look of the newly discovered predatory fish species Birgeria americana with the fossil oft he skull shown at bottom right (Artwork: Nadine Bösch)

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.

UZH media release