Roaring back to life

Northeastern Thailand is particularly well placed for dinosaur discoveries, said Thitiwoot Sethapanichsakul, a PhD student at University College London who co-authored the Nagatitan paper in the journal Scientific Reports.

Its dry climate and sparse vegetation leave fossil-bearing rocks exposed, while its geology contains sedimentary layers of the right age to preserve dinosaur remains.

"I think the current 'dinosaur rush' in Thailand is hopefully just the beginning," he said.