CONSTRAINTS

["D.W.Naish" <dwn194@soton.ac.uk>]

> 
> This, I think, should be generalized further.  Many dinosaurs are so unlike
> any living creature that to assume that the suite of adaptations they
> possessed in areas that cannot be determined by fossil evidence is bounded
> by that of living animals is simply not justifiable.  I am sure that
> sauropods and others must have had adaptive mechanisms so distinctive that
> it would be sheer blind luck if they occurred to us.  

".. animals that exceeded the morphological constraints present in extant
species would have exceeded the physiological constraints too.."

DARREN