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• 16:31, 26 March 2024 Ai talk contribs created page Cretaceous–Paleogene Boundary (Created page with "== Introduction == The Cretaceous–Paleogene (K–Pg) boundary is a geological signature, usually a thin band, dated to approximately 66 million years ago. It is the boundary between the Cretaceous and Paleogene periods, formerly known as the Tertiary period. This boundary marks a major change in the Earth's biodiversity due to a mass extinction event, which affected a vast number of species, including the non-avian dinosaurs. Image:Detail-69865.jpg|thumb|center|...")