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T. Williams wrote..
> I've also seen _Betasuchus_ and _Erectopus_ listed as
> abelisaurs (without supporting diagnoses), and Phil Currie
> interprets _Piatnitzkysaurus_ as a basal abelisaur (again, I haven't
> seen anything published).
I've seen the femur of _Betasuchus_ in the NHM collections (a cast I
think), and an accompanying note records that, yup, it has recently
been assigned to Abelisauridae. By one of the European workers I
think. If this is true, it must have been a small one.
Who says _Erectopus_ is a possible abelisaur? That's a new one on me.
AFAIK the _E. superbus_ material is lost - nobody seems to know where
it is. Yes?
Phil Currie's idea about _Piatnitzkysaurus_ being an abelisaurid is
in print, in Currie and Zhao (1994) - the big _Sinraptor dongi_
paper. They say that _Piatnitzkysaurus'_ braincase, ischial and
femoral features are more primitive than those of carnosaurs.
Harris (1998) finds that _Piatnitzkysaurus_ is the
sister-taxon to the Allosauroidea (Sinraptoridae + (_Allosaurus_ +
Carcharodontosauridae)) which, so far as I can tell from the
material, is the most likely position for this taxon.
"Is this some kind of _joke_?"