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Can the  posteriorly placed sub-sellar pit in the basicranium be considered
a synapomorphy for the coelurosaur clade? Also how universal is it in the
known allosauroids for the subsellar pit to be very anterior and without the
anteriorly leading groove that that appears to be present in most theropods.
Has this condition been examined in the carcharodontosaurs - ithink Chure or
Currie had studied them (may they are different)? Also was there a paper by
Chure on Marshosaurus crania?
Thanks
_EA

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