Re: ABELISAURIDS & CARCHARODONTOSAURIDS

[Stanley Friesen <sarima@ix.netcom.com>]

At 11:11 PM 3/16/99 -0500, Philidor11@aol.com wrote:
>In a message dated 3/15/99 11:46:31 AM Eastern Standard Time,
>darren.naish@port.ac.uk writes:
>
><< ... However, these characters are also seen in 
> other theropods (notably tyrannosaurids) and that they are -probably- 
> associated with social behaviour makes them somewhat suspicious as 
> ostensibly shared characters.  >>
>
>Social behaviors?  As opposed to display?  Please elucidate.  Thanks.

I doubt he meant *opposed* to display, he probably includes display as a
social behavior.  The problem he alludes to is that display characters
often vary greatly, even between closely related species.  This makes them
poorly suited to establishing larger scale phylogenetic relationships.

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May the peace of God be with you.         sarima@ix.netcom.com