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Carnosaurs and friends (was Re: Eustreptospondylus)
Nick Pharris says:
> No way, with that lacrimal and that obturator flange, that
> _Afrovenator_ is a megalosaur. I put it in the Carnosauria, as a
> sister group to Allosauroidea (which, for me, includes:
> _Cryolophosaurus_ [probably closest to Allosauridae];
I don't like the name "Carnosauria". Since it was first coined (?by
Huene) I think it's essentially been redefined out of existence. For
the clade including _Allosaurus_, _Sinraptor_, _Yangchuanosaurus_,
_Acrocanthosaurus_ etc I would name "Allosauria". I would retain the
term Carnosauria only for convenience - as a paraphyletic group
embracing the Megalosauria and Allosauria.
> Allosauridae [_Allosaurus_, _Saurophaganax_, _Giganotosaurus_,
> ?_Chilantaisaurus_, and probably new stuff from England and France];
I like _Chilantaisaurus_ better as a megalosaur. (I'm not even sure
if _C. tashuikoensis_ and _C. maortuensis_ belong to the same genus)
> Sinraptoridae [_Sinraptor_, _Yangchuanosaurus_, _Szechuanosaurus_,
> _Metriacanthosaurus_, ?_Gasosaurus_/_Kaijiangosaurus_, and
Could _Szechuanosaurus_ be an allosaurid?
I'm glad you mentioned _Gaso_ and _Kaijiango_, Nick. What is the
situation with these too - are they same? And are they sinraptorids?
> and Carcharodontosauridae [_Acrocanthosaurus_, _Bahariasaurus_,
_Bahariasaurus_ and _Deltadromeus_ are probably basal coelurosaurs -
the paper by Paul Sereno (and his small army of co-authors) on
_Carcharodontosaurus_ established this quite well. Their closest
relative may be _Dryptosaurus_.