DINOSAURS 500 FACTS
Author: PEGASUS,
Publisher: 500 FACTS
Published: 2018-05-18
Total Pages: 192
ISBN-13: 9788131942055
DOWNLOAD EBOOKDinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 231 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.