Re: Sharovipteryx

["T. Mike Keesey" <tmk@dinosauricon.com>]

On Tue, 23 May 2000, Ken Kinman wrote:

>      I would be interested to know if you regard Sharovipteryx as a 
> prolacertiform or as an archosauriform (perhaps an ornithodiran, sensu 
> stricto).

My observation is that people tend to place _Sharovipteryx_ wherever they
place Pterosauria. If they conside pterosaurs to be prolacertiforms, _S._
goes there. If they consider them to be ornithosuchians (not to be
confused with ornithosuchIDs), _S._ goes there.

The same can not be said for the other pterosaur sister-group candidate,
_Scleromochlus_, which always seems to be placed in Ornithosuchia.

These are just observations of existing phylogenies.

>      The same question could be asked concerning Longisquama.  In the 
> archosauromorph classification I posted yesterday, I preliminarily placed 
> them both as prolacertiforms, but I'm certainly not strongly wed to this 
> position. 

On my site I keep _L._ as ?Archosauromorpha _incertae sedis_.

> I'm even more uncertain about Doswelliidae.

Dos-who-iidae?

-- T. Michael Keesey .................................. <tmk@dinosauricon.com>
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