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Re: Triceratops and Torosaurus



From: MariusRomanus@aol.com wrote:

>"Torosaurus may in fact represent a separate taxon, a distinct genus, but
it might also be the male form of Triceratops."

Even *I* won't go this far. :) I would not be surprised if Torosaurus were
paraphyletic with respect to Triceratops, but the degree of dimorphism
implied by this hypothesis is thusfar not supported by what we think we know
about dinosaurs (unless soemone can offer a counter example, I am a little
behind the times anymore). Also, there is evidence for dimorphism within
Triceratops that conforms very well to the overall pattern observed in
Chasmosaurinae that may represent sexual dimorphism. I can't wait to see
what Andy has to offer on the subject of Torosaurus, though. Such a pretty
beast.

Wagner


Jonathan R. Wagner
9617 Great Hills Trail #1414
Austin, TX 78759