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Big news today: Australia’s dinosaur fauna just got a little less depauperate. Hocknull et al. (2009) described three new saurischian dinosaurs in PLoS ONE, and two of them are sauropods! I’m just going to hit the highlights in this post. For all 51 pages of awesome, you can download the full paper for free.

In the last post I introduced Aerosteon , which has been touted as providing the first solid evidence for bird-like air sacs in non-avian dinosaurs, and I explained a little about how we know what we think we know about dinosaur air sacs.