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Re: Megalancosaurus, Longisquama & other oddballs

Sereno, 1991:17 (JVP, Vol 11, Suppl. to No. 4) gives the following definition for Pterosauria:
Pterosauria includes the genera _Anurognathus_, _Campylognathoides_, _Dimorphodon_, _Dorygnathus_, _Eudimorphodon_, _Peteinosaurus_, _Preondactylus_, _Rhamphorhynchus_, _Scaphognathus_, Pterodactyloidea, and all descendants of their common ancestor.

From: "T. Mike Keesey" <tmk@dinosauricon.com>
Reply-To: tmk@dinosauricon.com
To: -Dinosaur Mailing List- <dinosaur@usc.edu>
CC: -PhyloCode Mailing List- <PhyloCode@ouvaxa.cats.ohiou.edu>
Subject: Re: Megalancosaurus, Longisquama & other oddballs
Date: Tue, 20 Mar 2001 18:48:30 -0500 (EST)

On Tue, 20 Mar 2001 NJPharris@aol.com wrote:

> In a message dated 3/18/01 6:30:45 PM Eastern Standard Time,
> tmk@dinosauricon.com writes:
> > _Pterosauromorpha_ == Clade(_Pterodactylus_ <-- _Iguanodon_)
> Better make this Clade(_Pterodactylus_ <-- _Iguanodon_, _Megalosaurus_),
> since it has been suggested in the past that pterosaurs are closer to
> theropods than to ornithischians.

Really!? Well, why not? It fits the original definition of "all organisms
sharing more recent ancestry with Pterosauria than with Dinosauria"
better, anyway. (Since _Dinosauria_ can be defined as Clade(_Iguanodon_ +

BTW, I've read that somebody (I think it was Sereno) defined _Pterosauria_
as a node-based clade anchored on about a dozen genera. Does anyone know
what those genera are?

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