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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
Actually, Cambrian is a "C" with a short transverse line through the
middle. Just plain "C" is for the Carboniferous, a period which in the
U.S. is normally divided into two periods, Misissippian and Pennsylvanian.
Thomas R. Holtz, Jr.
Vertebrate Paleontologist in Exile
U.S. Geological Survey
Branch of Paleontology & Stratigraphy
MS 970 National Center
Reston, VA 22092