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Re: K-T crocodylians

To: dinosaur@usc.edu
Subject: Re: K-T crocodylians
From: chris brochu <christopher-brochu@uiowa.edu>
Date: Wed, 25 Jul 2001 05:49:28 -0400
In-reply-to: <F15646FtcUfiLaMC7kV000060fe@hotmail.com>
Reply-to: christopher-brochu@uiowa.edu
Sender: owner-dinosaur@usc.edu

>      At least I'm glad you admit that Goniopholididae may have been among
>the extinctions at K-T.  What about Peirosauridae and Paralligatoridae?  Or
>are those families cladistically unacceptable taxa?


As far as I know, the records for these groups don't make it up to the
Maastrichtian.  Same with notosuchians (monophyletic or not) - it's rather
hard to claim that they croak at the kt boundary when their last appearance
datum is well below the kt boundary.


------------------------
Christopher A. Brochu
Assistant Professor
Department of Geoscience
University of Iowa
Iowa City, IA 52242

christopher-brochu@uiowa.edu
319-353-1808 phone
319-335-1821 fax

References:
- Re: K-T crocodylians
  - From: "Ken Kinman" <kinman@hotmail.com>

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