Gallery: The Diversity of Dino Ancestors

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Credit: Marlene Donnelly/Field Museum of Natural History
The pig-size Dicynodon was part of a large, dominant group of plant eaters found across the southern hemisphere until the mass extinction event weakened…Read More »

their numbers so that newly emerging herbivores could compete. New research published April 29 in the journal PNAS finds that these new competitors, which eventually gave rise to dinosaurs, diversified quickly in southern Pangea.    Less «
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Stephanie Pappas

Stephanie Pappas is a contributing writer for Live Science. She covers the world of human and animal behavior, as well as paleontology and other science topics. Stephanie has a Bachelor of Arts in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz. She has ducked under a glacier in Switzerland and poked hot lava with a stick in Hawaii. Stephanie hails from East Tennessee, the global center for salamander diversity. Follow Stephanie on Google+.
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