RE: K-T Theories

[Stan Friesen <swf@ElSegundoCA.ATTGIS.COM>]

To: dinosaur@lepomis.psych.upenn.edu (Multiple recipients of list)
 > It would explain why all large creatures died out. But why would
 > ALL of Dinosauria die out? Why not all of Mammalia and Reptilia? Were
 > there no dinosaurs smaller than the largest surviving mammal at that
 > time?

Well, remember that by then the smallest dinosaur was probably Troodon,
or a close relative.

The largest mammal at the time was about the size of a cat
(and a small one at that).

There seems to have been no overlap in size at all, so the
largest surviving mammal was, perforce, smaller than the
smallest Late Maastricthian dinosaur.

swf@elsegundoca.attgis.com              sarima@netcom.com

The peace of God be with you.