User blog comment:Gary3008/Evidence of new species of puffles!/@comment-24096114-20140109214814/@comment-4852494-20140109215351

That is true, but a few more remote species of stegosaurs survived into the cretaceous in the southern hemisphere, and Club Penguin is quite isolated, it could be possible that this particular species survived the extinction event at the end of the Jurassic.