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Re: Revised Ornithischian Classification
> If I thought hypsilophodonts could be divided into two clades (as you
> did), I would see no real need for a paraphyletic family. But the closer
> look, I see more and more small clades splitting off sequentially (far
> than 2).
While I have no opinion on this, could you tell us some evidence for this,
or are you planning to write a paper on it?
> Therefore, I believe it is strict cladification that is the bad
> idea in this case, because it would require perhaps 10 small families or
> more (there could be one or two Australian clades splitting off separately
> that would require more families).
...that's why I dislike ranks :-)
> Since most dinosaurologists continue to
> assign these forms to a Family Hypsilophodontidae,
Most dinosaurologists don't use families anymore, and Hypsilophodontidae in
such a broad sense at least has gone completely out of use in the last few
BTW, it's *Leaellynasaura*, with eae, after Lea Ellyn Rich AFAIK.