Isn't that similar to "when is a door not a door?"
Brentasaurus
PS When the door is a jar (ajar)!
John Bois <jbois@umd5.umd.edu> wrote:
On Mon, 3 Jun 2002, David Marjanovic wrote:
> When exactly? Could I maybe blame the little
> Aptian-Albian mass extinction? Or the Cenomanian-Turonian one (would imply
> some ghost lineage)? :-) -- With the few known stegosaurs it's of course
> rather improbable that we'll find out anytime soon why they died out before
> the K-T, and when.
"The little...mass extinction." ?? When is a mass extinction not a mass
extinction?