RE: Ceratopsian Systematics [was: Avaceratops and Ceratops (was Re:THE NEW I...

["Allan Edels" <edels@email.msn.com>]

Tim:

        As restored at ANSP, the _Avaceratops_ holotype is about 4.0 - 4.2 m.  
[I
used to do a LOT of volunteer & some paid work at ANSP until a few years
ago].

        Allan Edels

-----Original Message-----
From: owner-dinosaur@usc.edu [mailto:owner-dinosaur@usc.edu]On Behalf Of
Timothy Williams
Sent: Wednesday, January 26, 2000 2:17 PM
To: edels@email.msn.com; dinosaur@usc.edu
Subject: RE: Ceratopsian Systematics [was: Avaceratops and Ceratops (was
Re:THE NEW I...


Allan Edels wrote:

>       Having seen _Avaceratops_ many, many times over the last 15+ years (and
>knowing Peter Dodson) - I do know that the classification of _Avaceratops_
>as a juvenile should more probably be refined as a sub-adult.  Based on the
>occipital condyle being nearly completed fused, this indicates that the
>animal was nearly fully mature, and as such its features are more likely to
>be very close to those of the adult form.  Its size is probably 80% of
>full-grown.

That's backed up the second _Avaceratops_ skull (MOR 694 I think, but I'm
going from memory - always a dangerous thing), which indicates a fully-grown
individual of around 5m long.  (I'm going to trust Dodson's referral of this
skull to _Ava_).  The holotype of _Avaceratops_, a subadult individual,
probably had a body length of approx 4.2m.


Tim

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