First Children Encyclopedia

(Marvins-Underground-K-12) #1

Did T. rex and Triceratops ever meet?


Age of the dinosaurs


A hip question

Dinosaurs can be split into two groups,


according to their hip bones: the saurischians


(the lizard-hipped dinosaurs) and


the ornithischians (or bird-


hipped dinosaurs).


186


Bird-hipped dinosaurs
had a pair of hip bones
pointing back.
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