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> Could I get references for Stygivenator and Siamotyrannus please. They are
> new enough that I have nothing that refers to them. I know that they have
> been on the list before, but I could not find them in the archives. Well all
> i know is that _Siamotyrannus isanensis_ is a very primitive
tyrannosaurid, mabye as primitive as _Itermirus medularis_. There are
three species of _Stygivenator_: _S. amplus_, _S. cristatus_ and _S.
molnari_. One of these species has replaced _Aublysodon_. As you may
understand, _Stygivenator_ is an aublysodontid (or allso called
stygivenatorid, or shanshanosaurid).