A shrinking village pond in Thailand has helped uncover what is now considered the largest dinosaur identified in Southeast Asia. The fossilised remains, first spotted on the exposed bank in Chaiyaphum province during the 2016 dry season, have now been identified as Nagatitan chaiyaphumensis , a giant long-necked dinosaur that weighed an estimated 25 to 28 tonnes and stretched about 27 metres.
The dinosaur was formally described in a paper published in Scientific Reports in May 2026. Researchers recovered the remains over two field seasons after local residents noticed unusual rocks along the edge of the drying pond.
