Re: Mononykine or Parvicursorine?

[Dinogeorge <Dinogeorge@aol.com>]

In a message dated 98-03-26 02:26:22 EST, tkeese1@gl.umbc.edu writes:

<< If Mononykinae has just been defined as a node-based taxon, mightn't
 _Parvicursor_ fall outside of it? _Shuvuuia_ is supoosed to be quite
 similar to _Mononykus_ and the two come from the exact same area. What
 about:
 
 Alvarezsauria >>

I've still not seen any convincing argument that parvicursorids and
alvarezsaurids are closely related enough that they should be included in a
clade such as Alvarezsauria. _Patagonykus_ might be a parvicursorid, but the
differences between it and _Alvarezsaurus_ are considerable.