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The "K" of "K-T" (was: Re: FAQs)



>  > What does the K-T in K-T boundary mean?
> 
> Kretaceous-Tertiary, that is it is an abbreviation of the
> statement that the extenction marks the boundary between the
> Cretaceous and Tertiary periods.

A bit of clarification: K is used for Cretaceous because C is used
for Cambrian.