A third of dinosaur species never existed?

According to this article from National Geographic News, some experts now believe the number of dinosaur species has been overestimated. Some specimens that were previously believed to be distinct species are now believed to be juvenile specimens of other species. (Hat tip to Eric Geiger.)

2 thoughts on “A third of dinosaur species never existed?

  1. From Umberto Eco’s “The name of the rose”:

    Then William tells him, “In the cathedral at Cologne, I saw the skull of John the Baptist at the age of twelve”. “Really?’ Adso exclaimed, amazed. Then, seized by doubt, he added, “But the Baptist was executed at a more advanced age!”. “The other skull must be in another treasury,” William said, with a grave face.

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