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Cretaceous-Tertiary extinction event

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Dinosaur-killing mass extinction event just as deadly to life in Antarctic

International Business Times UK - ‎9 hours ago‎
... just as deadly to life in the Antarctic, killing up to 70% of species living there at the time. Analysis of over 6,000 marine fossils shows creatures living in the southernmost regions of Earth were not spared in the CretaceousTertiary (KT) mass ...

Why dinosaur extinction is only half the story of killer asteroid's impact

The Guardian - ‎May 25, 2016‎
Like most things to do with mass extinctions, even the naming of the Cretaceous event is not without controversy. Many researchers still refer to it as the K-T extinction, where K refers, confusingly, to the Cretaceous (Kreide in German) and T stands ...