Comments on: Canadian Dinosaur Find: New Species? https://gregladen.com/blog/2009/06/30/canadian-dinosaur-find-new-spe-1/ Tue, 30 Jun 2009 22:19:53 +0000 hourly 1 https://wordpress.org/?v=6.4.8 By: Nathan Myers https://gregladen.com/blog/2009/06/30/canadian-dinosaur-find-new-spe-1/#comment-538934 Tue, 30 Jun 2009 22:19:53 +0000 http://scienceblogs.com/gregladen/2009/06/30/canadian-dinosaur-find-new-spe-1/#comment-538934 You wondered what happened to the dinosaurs? Now you know: nuke strike in B.C. And that asteroid… Did it fall, or was it pushed?

]]> By: Dallas https://gregladen.com/blog/2009/06/30/canadian-dinosaur-find-new-spe-1/#comment-538933 Tue, 30 Jun 2009 21:54:51 +0000 http://scienceblogs.com/gregladen/2009/06/30/canadian-dinosaur-find-new-spe-1/#comment-538933 “The researchers have identified this dinosaur as an Ornithischian beast, meaning, a dinosaur with a particular (bird-like) morphology of the pubis. You’ve no doubt heard that birds are really dinosaurs, or that dinosaurs never really went extinct, they just became birds, and so on. Well, those are oversimplified and rather quaint statements but yes, this is a dinosaur in the same Order that, essentially, includes the birds.”

Actually, birds evolved from Saurischia (Theropods and Sauropods), not Ornithischia (Hadrosaurs, ceratopsians, stegosaurs, etc). It’s an easy mistake to make since the word Ornithischia refers to bird-like pelvises and Saurischia refers to lizard like pelvises, but with birds it’s a case of convergent evolution that their pelvises became similar to the ornithischians. Supposedly, a few different theropods independently developed bird-like pelvises.

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