[meteorite-list] Is the "K–T boundary" now the "K–Pg boundary" ??

From: Matt Morgan <mail_at_meteoritecentral.com>
Date: Tue, 3 Nov 2009 02:11:57 +0000
Message-ID: <1164789137-1257214397-cardhu_decombobulator_blackberry.rim.net-2143953346-_at_bda677.bisx.prod.on.blackberry>

Not many in the scientific community I work with seem to care about this change. We still call it the Tertiary.
Matt
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Subject: [meteorite-list] Is the "K?T boundary" now the "K?Pg boundary" ??
Sent: Nov 2, 2009 6:59 PM

Dear Listmembers,

The people on this list, who work with the K-T Boundary might
consider the likelyhood that the recent formal ratification of the
Quaternary System/Period and the Pleistocene Series/Epoch
systems has changes the "K-T Boundary" to the "K-Pg Boundary"
As discussed by Gibbad et al. (2009), the formal ratification of
the Quaternary System/Period and the Pleistocene Series/Epoch
systems by the Executive Committee of the International Union
of Geological Sciences (IUGS) has eliminated the "Tertiary" as a
formally recognized Period. As a result, the Cenozoic Era is now
divided into the Paleogene, Neogene, and Quaternary periods and
the "Tertiary" has been completely abandoned as either a period
or sub-era as shown in figure 1 of Gibbard et al. (2009). This
means that that the "tertiary" has been stripped of any formal
status in stratigraphic nomenclature. Thus, the "Cretaceous-
Tertiary Boundary" is no longer recognized terminology and
leaves the Cretaceous-Paleogene Boundary as the only officially
sanctioned way in terms of stratigraphic nomenclature of
designating this boundary.

Reference Cited

Gibbard , P L., M. J. Head , M. J. C. Walker, the Subcommission
on Quaternary Stratigraphy, 2009, Formal ratification of the
Quaternary System/Period and the Pleistocene Series/Epoch
with a base at 2.58 Ma. Journal of Quaternary Science.
Published Online: 22 Sep 2009

http://www3.interscience.wiley.com/journal/122602421/abstract

Yours,

Paul H.
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----------------------
Matt Morgan
Mile High Meteorites
http://www.mhmeteorites.com
P.O. Box 151293
Lakewood, CO 80215 USA
Received on Mon 02 Nov 2009 09:11:57 PM PST