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Re: ceratopsians



Has anyone worked out the systematics for ceratopsians?

Some relationships to consider:
Triceratops/Torosaurus
Avaceratops/Monoclonius
Styracosaurus/Centrosaurus (or is it Eucentrosaurus)

How does the new pachyrhinosaurs fit in?

---John Schneiderman (dino@revelation.unomaha.edu)