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In a message dated 96-01-31 23:48:21 EST, Stang1996@aol.com writes:
>Or, to us generic lumpers (I lump genera, but split species and families) it
>could mean that the entire subfamily Centrosaurinae or Eucentrosaurinae or
>Pachyrhinosaurinae (or whatever you wish to call it) could be sunk into the
>genus _Monoclonius_, though the type species would probably be _appertus_
No, you can't change the type species of a genus. The type species is
There however would be subgenera; none of them
>being _Monoclonius_ though (don't you love this?).
ICZN rules specify that one subgenus _must_ be _Monoclonius_, namely, the
subgenus that contains at least the type species. If you can't name one of
the subgenera _Monoclonius_, then the genus is indeterminate.
>and _Avaceratops_ wouldn't be subgenera either. But then the subfamilial
>name would have to be changed to Monocloninae (don't you love this?). This
>is _Hadrosaurus_ all over again!