From: "Gary Bull" <GWinston@msn.com> >There's a major problem with this theory - the extinctions appear to be > cyclical (on a cosmic scale which ... Serious doubt has been cast upon this conclusion. I have yet to see an analysis that supported this that was not statistically flawed. swf@elsegundoca.attgis.com sarima@netcom.com The peace of God be with you.