Re: Geological timescale

["David Marjanovic" <david.marjanovic@gmx.at>]

I just wrote...

> > So have we seen the last of Tertiary and Quaternary?
>
> Yes.

Now I've found that we can have this in dramatic words:

"'Quaternary' is traditionally considered to be the interval of oscillating
climatic extremes (glacial and interglacial episodes) that was initiated at
about 2.5 Ma, therefore encompasses the Holocene, Pleistocene and uppermost
Pliocene. It is not a formal chronostratigraphic unit."

Besides, the Holocene still starts 10,000 "years" ago -- C-14 years BP. The
K-Pg boundary is indeed defined by the Ir anomaly, and the Pal-Eocene
boundary is indeed defined by the carbon isotope excursion.

http://www.stratigraphy.org/gssp.htm