How massive long-necked dinosaurs rose to rule the Jurassic herbivores

Volcanic activity may have altered plant life and ushered in rise of dinosaur giants



Newly discovered Bagualia alba (illustrated) is one of the oldest true sauropod fossils ever discovered, dating to 179 million years ago. Like other sauropods, B. alba had powerful jaws and an oversized gut, which helped it consume particularly tough plant material.

A volcanic surge helped sauropods rule over Jurassic herbivores | Science News
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