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Re: What are these dinosaurs? 2: Return of What are these dinosaurs?

"Thomas R. Holtz, Jr." wrote:

> Under phylogenetic taxonomy, the name Dinosauria is applied to the clade
> comprised of all descendents of the most recent common ancestor of modern
> birds and _Triceratops_; it does not hinge on the fate of the name
> "_Dinosaurus_".
> Also, the appropriateness of a name (species level on up) has NEVER been a
> requirement: there is nothing forbidding people naming a giant titanosaur
> _Micronanomusculus_ (little dwarf mousie), other than good taste.
> You may rest easy; Dinosauria is not at risk.
>    Unless we determine at some point that it truly ISN'T monphyletic....

Josh Smith
Department of Earth and Environmental Science
University of Pennsylvania
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