Re: K/T boundary

[NEIL CLARK <NCLARK@museum.gla.ac.uk>]

 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!


Neil Clark
Curator of Palaeontology
Hunterian Museum
University of Glasgow
email: NCLARK@museum.gla.ac.uk

The first law of Geology is the law of supposition.
(Geological Howlers - ed. WDI Rolfe)