A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that buried fish, mammals, insects and a dinosaur, the first victims of Earth’s last mass extinction event. The death scene from within an hour of the impact has been excavated at a fossil site in North Dakota.

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A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that buried fish, mammals, insects and a dinosaur, the first victims of Earth’s last mass extinction event. The death scene from within an hour of the impact has been excavated at a fossil site in North Dakota.