A duck-billed herbivorous dinosaur roamed the ancient and remote river plains of southern Chile some 72 million years ago, a new study revealed on Friday.
Scientists have dubbed the dinosaur "Gonkoken nanoi" and say it weighed up to a metric ton and could grow to four meters (13.12 feet) in length, according to the study published in Science Advances.
In 2013, an expedition led by the Chilean Antarctic Institute (INACH) discovered fragments of yellowish bones at the bottom of a hillside close to the major tourist destination Torres del Paine. This kicked off an almost decade-long investigation.
"They were very, very abundant — especially in the northern hemisphere, North America, above all. However, here in the southern hemisphere, they are hardly known," said Jhonathan Alarcon, the main author of the study.
Alarcon said researchers extracted more than 100 pieces and it was difficult to extract them without damaging others. After that, scientists had to make sure the bones belonged to the same species and check them with existing research to verify that it was indeed a new species.
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