Who was Katy Drivel ?

[(Paul Jeffery) <paj@xxxxxxxxx>]

Sorry to jump on this bandwagon, even as it's grinding to a halt, but a 
comment in Una Smith's last communication really caught my eye.  It seems 
that however long it may have taken, and whatever groups of animals and 
plants did or did not briefly survive it, the K/T boundary marks the last 
gasp of an awful lot of previously important groups.  So "Can any biotic 
evidence help us pick out the One True Cause" (Una's capitalisation).  With 
so much conflicting evidence and so many disparate theories to explain this 
extinction event, why the hell assume there is only ONE true cause ?  
Surely a sequence of events: bolide impact, extrusion of the Deccan traps, 
climate shift, vegetational changes, etc. etc., may jointly have caused an 
effect that one event alone could not account for.  Previously I knew 
little about the K/T boundary event, now I'm ignorant AND puzzled - help!

PS.  I'll believe dinosaurs survived into the Palaeocene when someone finds 
ARTICULATED bones, IN-SITU in a RELIABLY DATED Palaeocene deposit. (I know: 
"dream-on").
    ____________________________________________________________________
   / Paul Jeffery,          [Curator, non-cephalopod Mollusca]          \
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