Re: What the fossil record tells us about trends in pterosaur diversity

[David Peters <davidpeters@att.net>]

DM wrote:

to the point that it is impossible to read any trends in pterosaur  
diversity from the fossil record.

I disagree. Phylograms are particularly instructive.

BTW: various pterosaur genera of all shapes, sizes and niches were  
going extinct left and right long before the advent of birds.

David Peters
davidpeters@att.net