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Fossils show widespread plant extinctions after asteroid wiped out dinosaurs
September 26, 2023
UNIVERSITY PARK, Pennsylvania, Sept. 26 -- Pennsylvania State University issued the following news:

By Matthew CarrollĀ 

UNIVERSITY PARK, Pa. -- Sixty-six million years ago, an asteroid the size of San Francisco crashed into a shallow sea off the coast of modern-day Mexico and plunged the world into an extinction event that killed off as much as 75% of life, including the dinosaurs.

But a debate remains about how the Cretaceous-Paleogene extinction (K-Pg) i . . .

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