Remarkable! Thailand Discovers 'Nakhakittan Chaiyaphumiensis' - A New Species of Long-Necked Dinosaur, the Largest Ever Found in Thailand
Paleontologists in Thailand have identified a new long-necked dinosaur species, Nakhakittan Chaiyaphumiensis, the largest land animal ever discovered, estimated at 27-30 meters long and weighing over 26 tons. The 14th officially named dinos
On May 15, 2026, Dr. Sita Manitkul from Mahasarakham University's Paleontology Research and Education Center announced the discovery of a new long-necked dinosaur species: 'Nakhakittan Chaiyaphumiensis.' While whales can achieve enormous size due to water's buoyancy, this sauropod dinosaur is remarkable because it was a land animal that evolved hollow bone cavities and other structural adaptations to reduce weight, becoming the largest land animal ever to exist.
Based on the study of over 20 bone fragments, particularly a right humerus measuring 178 centimeters and ribs and femurs exceeding 2 meters in length, researchers estimate the dinosaur reached 27-30 meters in length and weighed over 26 tons. This is the 14th officially named dinosaur species from Thailand. The name 'Nakhakittan' combines 'Naka' (the serpent deity in Thai belief) and 'Titan' (giants from Greek mythology), referencing the massive long-necked dinosaur, while 'Chaiyaphumiensis' refers to Chaiyaphum Province, where it was discovered.
The discovery began in 2016 when local resident Thanom Luangnan noticed fossils and reported them to the Department of Mineral Resources. Systematic excavation and study followed under the guidance of geologists Sasorn Kansupa and Cherdchan Podhijai, uncovering significant bone fragments including dorsal vertebrae, sacrum, pelvis bones, and notably the complete right humerus. The fossils have been partially preserved at the Sirindhon Dinosaur Museum in Kalasin Province.
Between 2016 and 2023, the Department of Mineral Resources developed the site as 'Ban Phanang Seua Dinosaur Learning Center.' In 2024, Dr. Sita Manitkul received support from National Geographic through the 'Exploring the Titans' project to further study, conserve, and develop the learning center in collaboration with local communities and the Chaiyaphum Geopark.
