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Re: K/T boundary
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>
> From Clive:-
>
>> In Britain there's three periods beginning with the letter C,
>Cambrian,
>> Cretaceous and Carboniferous. So there
>>
>>And the symbol for Cambrian is not a 'C' anyway but a 'C' with a line
>through it. Carboniferous has a straight 'C' and Cretaceous has a 'K'
>(Kreide = chalk in German). By the way the 'Tertiary' does not exist
>anymore. The Cainozoic begins with the Palaeogene followed by the
>Neogene Systems each of which is subdivided into Series such as
>Paleocene, Eocene, Oligocene, etc.... so that some formal
>systematics in the upper part of the geological column makes it
>comparable with formal System breakdown in the lower part of the
>geological column, e.g., Silurian System - divided formally into
>Llandovery, Wenlock, Ludlow and Pridoli, on a global basis, ratified
>by IUGS.
>
>Thought you might like the up-to-date stratigraphy that is now formally
>accepted. I suppose the boundary should now be the K/P boundary!
>
Nah, we'll let the T stand for Palaeogene. I'm sure P is used somewhere. :-)