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Re: Dinos in the Southern Hemisphere: Sereno et al. and the VII MesozoicTerre...
In a message dated 11/13/99 2:45:11 PM EST, firstname.lastname@example.org
<< Most likely, as Upchurch suggests
(in his recent JVP paper on nemegtosaurids), the partial mandible and
braincase come from two different sauropods. Sereno et al provide a
possible identity for the mandible (rebbachisaurid).
The hypodigm of _Antarctosaurus wichmannianus_ is problematic since the
postcranium too may be a chimera. Huene had an irritating habit of pooling
unassociated material together into single taxa, and separating associated
material into different taxa. _Laplatasaurus_ is problematic for much the
same reason. >>
This is indeed the case. Jack McIntosh told me about this problem many years
ago, when I was looking at titanosaurids. Was one of the reasons I decided to
avoid titanosaur taxonomy. Glad to see people are finally beginning to mess
around with them.