Definitions for K-T boundary
This page provides all possible meanings and translations of the word K-T boundary
The geological signature of the transition between the Cretaceous period and the Tertiary period 65.5 million years ago.This transition is marked worldwide by a layer of material that contains a high level of iridium.
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"K-T boundary." Definitions.net. STANDS4 LLC, 2014. Web. 21 Apr. 2014. <http://www.definitions.net/definition/K-T boundary>.