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Re: Extinction



>Bakker does have some good questions. Why do the number of fossils
>taper off as you get near the time of impact? Shouldn't a graph of
>the fossils show a spike near the estimated time of impact? Why didn't
>ALL species die out?
>
>Tim

Current theories regarding dinosaur extinction do ignore the smaller
species that survived the extinction.  IMHO I think that the reason why
they suvived is a question of size.  When you look at the species that
perished in the K-T extinction, it appears that every species the size of a
housecat and larger perished; their larger bodies requiring more food than
their smaller counterparts. This seems to be the biggest point for the
impact-therorists.

If the same thing were to happen today (killing off all animals larger than
a cat), there would have to be extremely restrictive environmental
conditions.  Almost requiring a cosmic zap.

GEOLOGISTS ARE FUN TO BE WITH BECAUSE THEY'RE VERY GNIESS