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Date: Sun, 18 Mar 2001 21:24:43 -0500 (EST)
From: "T. Mike Keesey" <tmk@dinosauricon.com>
To: Stephen <stephenbowden@home.com>
Cc: -Dinosaur Mailing List- <dinosaur@usc.edu>, -PhyloCode Mailing List- <PhyloCode@ouvaxa.cats.ohiou.edu>
Subject: Re: Megalancosaurus, Longisquama & other oddballs
On Sun, 18 Mar 2001, Stephen wrote: > "T. Mike Keesey" wrote: > <snip> > > > > While I'm at it, can anyone think of any objections to these definitions?: > > > > _Pseudosuchia_ == Clade(_Crocodylus_ <-- _Passer_, _Iguanodon_, _Megalosaurus_) > > It seems a pity not to take the opportunity of a new code to abandon > those names which have become slightly nonsensical, of which this must > be the shining example: "false crocodiles" seems the wrong way to name a > clade based on _Crocodylus_. Stability of nomenclature isn't all good, > all the time. The pre-existing _Crocodylotarsi_ would be a *much* more appropriate name. (It also makes for a nicer match to its sister group, _Avemetatarsalia_ (if that name is used instead of _Ornithosuchia_).) It's kind of hard to make some of these calls, though. For example, _Predentata_ is a much more appropriate name for Clade(_Iguanodon_ <-- _Megalosaurus_) than _Ornithischia_. But _Ornithischia_ is *extremely* widely used, and _Predentata_ hardly used at all. In this case, the less appropriate name should be conserved. Is _Pseudosuchia_ too commonly used to be supplanted by _Crocodylotarsi_? My feeling is no, although others are much better qualified to judge. _____________________________________________________________________________ T. MICHAEL KEESEY Home Page <http://dinosauricon.com/keesey> The Dinosauricon <http://dinosauricon.com> personal <keesey@bigfoot.com> --> <tmk@dinosauricon.com> Dinosauricon-related <dinosaur@dinosauricon.com> AOL Instant Messenger <Ric Blayze> ICQ <77314901> Yahoo! Messenger <Mighty Odinn>