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Re: Titanosaurs



In a message dated 97-12-14 15:42:57 EST, sarima@ix.netcom.com writes:

<< This cladogram has one problem: Euhelopus and Mamenchisaurus have 17
 cervicals, and the others all have 10-12 cervicals.  Combined with other
 factors, I think this makes a *clade* containing both _Euhelopus_ and
 _Mamenchisaurus_ at least a decent possibility. >>

There are numerous apomorphies that unite most if not all of the Chinese
Jurassic sauropods into a natural group, and the supernumerary cervicals are
certainly such.