WALTER MYERS / SCIENCE PHOTO LIBRARY WALTER MYERS / SCIENCE PHOTO LIBRARY
Isisaurus dinosaurs. Computer artwork of a pair of leaf-eating Isisaurus colberti (previously Titanosaurus colberti) roaming lush plains in what is now central India. Isisaurus were herbivorous dinosaurs that lived during the Late Cretaceous period, around 65 to 100 million years ago. They grew up to 60 feet (18 metres) long and weighed as much as 15 tonnes.
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