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I'm new here, a simple layman wanting to learn, and I have a
>He did what is known as allometric analysis to show that all but<
>one or two of the described species of Corythosaurus belonged to<
>a *single* species, Corythosaurus casuarius, that those one or<
>two other species were female Lambeosaurus specimens, and that<
>all of the described Prochenosaurus species were juveniles of<
>either Corythosaurus or Lambeosaurus.<
>As a results there are two valid genera, Corythosaurus and<
>Lambeosaurus, and three valid species.<
What about Parasaurolophus? Are they grouped in with the above
J.Saseen1 Genie.geis.com