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Cretaceous-Tertiary boundary

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Cre`ta´ceous-Tert´i`ar`y boun´da`ry    (krė`tā´shŭs)
n.1.a thin layer of geologic deposits, of varying thickness in different parts of the world, found between the geological strata identified as Cretaceous and the strata above, identified as Tertiary; also, the time point or period marking the boundary between the Cretaceous and Tertiary periods.
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According to plant biologist and wine writer Jamie Goode, "The cork industry currently looks a bit like a dinosaur watching the meteor impact that occurred at the Cretaceous-Tertiary boundary 65 million years ago.
Wine-makers say "screw you" to cork by Art Culinaire
Testing extinction theories at the Cretaceous-Tertiary boundary using the vertebrate fossil record.
Paleoecotoxicology: the impact of chemical and physical stress in the ... by Herkovits, Jorge / Environmental Health Perspectives
Along the Brazos River there are meter-thick beds of coarse-grained sandstones and large chunks of clay that were deposited precisely at the Cretaceous-Tertiary boundary.
A goodbye wave? by Science News
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