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Psittacosaurus (Gray, Susan Heinrichs. Exploring Dinosaurs.)
Psittacosaurus - Gray, Susan Heinrichs. Exploring Dinosaurs. Author:Susan Heinrichs Gray In 1922, a team of scientists endured many hardships while traveling to Mongolia in search of dinosaurs. Readers will reap the benefits of their trials as they learn all about the new dinosaur they discovered there—the Psittacosaurus.