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Re: new boook on functional morphology
From: Jeffrey Martz <martz@holly.ColoState.EDU>
> Is there a possibility that the funny Pachyrhinoceros "nore lump"
> sported a big huge horn?
No, due to the newly discovered intermediates between Centrosaurus
and Pachyrhinosaurus (?Eniosaurus and Achelosaurus).
> Like they showed in the PBS "Dinosaurs"
> series. Also, how similar is the Pachyrhino nose bump to the new Two
> Medicine ceratopsian ...
Quite similar, actually. These two forms make up a transitional
series with between the more typical Centrosaurus and Pachyrhinosaurus.
>From these skulls it is clear that Pachy's horn is derived from
a Cnetrosaurus horn by doubling over.
The peace of God be with you.