We have no idea how these creatures looked fleshed out..That seems very clear to me after looking at the drawing of a cow as may have been imagined by a palaeoartist if we only knew of it from its skeleton.
Terrific book ..thought provoking.......

This is how they imagine a cat would be represented if someone where to find it's 60 million year old skeleton

I have only been able to find the kindle version as yet..the reviews by readers are worth a gander as well ..especially Ms. Willhoughby
http://www.amazon.com/All-Yesterdays-Sp ... ic+Animals