Re: Dinosaurs to birds

[John Bois <jbois@umd5.umd.edu>]

On Sun, 24 Jan 1999, Raymond Thaddeus C. Ancog wrote:

> John Bois wrote (about the K/T transition):
> 
> >Then how do you explain the disappearance of enantiornithines?  More bad
> >luck? 
> 
> This is analogous to the survival of the pterodactyloids and the extinction
> of the "rhamphorhynchoids" at the J/K boundary. In each case, the dominant
> volant vertebrate group died out and was replaced by another group. As to
> why this is so, we don't know.

If you don't know, how do you know it is analagous?