Re: Serration variation

[Dinogeorge@aol.com]

In a message dated 2/9/00 2:16:53 PM EST, majestic_cheese@yahoo.com writes:

<< Is there much variation among the serrations on
 theropod teeth?  (From tooth to tooth, or from species
 to species.) Or are serrations serrations?  If there
 is variation, why? >>

Lots of variation: serration size, shape, frequency, and position on tooth 
are four variables that immediately come to mind. Major source of variation 
may be phylogenetic, as closely related theropods seem to have similar kinds 
of serrations, whereas more distantly related theropods have less similar 
tooth serrations.