Life's scale reduction since the Dinosaurs

[swh@eatl.co.uk (Stephen Hurrell)]

Considering the recent discussions about how BIG is BIG 
in relationship to the Dinosaurs, my request for help to 
quantify the scale reduction in life over time my well 
interest a few of you. 

We all know that the Dinosaurs were big. What is not so generally 
realized is that life has been reducing in size over periods of 
hundreds of millions of years. 

There can be no doubt that this size reduction has taken place. 
After the extinction of the Dinosaurs a range of Supergiant Mammals 
approaching the size of the smaller Dinosaurs evolved. These Supergiant 
Mammals were superseded by Giant Mammals which were larger 
versions of the Mammals alive today. These Giant Mammals have in 
their turn died out to be replaced by a smaller scale of life.

I am currently trying to quantify this scale reduction in life and I 
would welcome help with this task. If you are interested, contact me 
and I will send some additional information.

(Some of you may well be aware that this scale reduction has occurred
throughout life's time on Earth. I am of course interested in scale 
reduction over time for Dinosaurs, Insects, Plants, etc.).

Stephen Hurrell 
11 Farmers Heath
Great Sutton
South Wirral
L66 2GX
Great Britain