Skull study sheds light on dinosaur diversity

With their long necks and tails, sauropod dinosaurs—famous as the Sinclair gasoline logo and Fred Flintstone's gravel pit tractor—are easy to recognize, in part because they all seem to look alike.

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<p><a href="http://www.physorg.com/news6540.html">Skull study sheds light on dinosaur diversity</a></p> <p>With their long necks and tails, sauropod dinosaurs—famous as the Sinclair gasoline logo and Fred Flintstone's gravel pit tractor—are easy to recognize, in part because they all seem to look alike.</p>