North Dakota Bone Bed Records Chicxulub asteroid impact
Chicxulub asteroid impact: Stunning fossils record dinosaurs' demise
By Jonathan Amos, BBC News.
Scientists Find Fossilized Fish That May Have Been Blasted by
Debris From Asteroid That Ended the Dinosaur Age
Ryan F. Mandelbaum, GIZMODO, March 25, 2019
Yours,
Paul H.
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