From: Paul P <turtlecroc@yahoo.com>=0A>The holotype of C. kaiseni is
an alm=ost complete skull,=0Aso claiming that it's nondiagnostic is
to suggest tha=t an=0Aentire bonebed is needed to diagnose a species.
That=0Asimply is not= the case.=0A=0AMmmm... not really. For
Chasmosaurines, at the resolution a=t which we are =0Alooking, small
changes in parietal ornamentation are crit=ical: we're comparing
=0Aspecies at about 300Ka resolution, not end members= that are
millions of years =0Aapart. C. kaiseni lacks most of the parietal=,
hence it is undiagnostic. =0A=0A=0ADF=0A=0A=0A