Re: new boook on functional morphology

[Stan Friesen <swf@ElSegundoCA.ATTGIS.COM>]

From: Jeffrey Martz <martz@holly.ColoState.EDU>
> 
 > 
 >      Is there a possibility that the funny Pachyrhinoceros "nore lump" 
 > sported a big huge horn? 

No, due to the newly discovered intermediates between Centrosaurus
and Pachyrhinosaurus (?Eniosaurus and Achelosaurus).

 > Like they showed in the PBS "Dinosaurs" 
 > series.  Also, how similar is the Pachyrhino nose bump to the new Two 
 > Medicine ceratopsian ... 

Quite similar, actually.  These two forms make up a transitional
series with between the more typical Centrosaurus and Pachyrhinosaurus.
>From these skulls it is clear that Pachy's horn is derived from
a Cnetrosaurus horn by doubling over.

swf@elsegundoca.attgis.com              sarima@netcom.com

The peace of God be with you.