In early April, a paleontology graduate student, Robert DePalma, published a major find in The Proceedings of the National Academy of Sciences and hyped the discovery in The New Yorker. Locked in layers of North Dakota rock, he had found an impressive collection of ancient fish, microorganisms and plants that date to the same time period as the infamous global extinction event that killed the dinosaurs. That extinction is widely believed to have been caused by an asteroid impact, and DePalma’s site seems to offer further evidence supporting that theory.

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