In May 2026, a team of international researchers announced a breakthrough discovery. Scientists have identified a brand new species of colossal sauropod, which has been named Nagatitan chaiyaphumensiswhich currently holds the title of the most important dinosaur ever discovered in Southeast Asia.
This huge herbivore lived within the Early Cretaceous, roughly 100–120 million years ago. According to Scientific report written by Thitiwoot Sethapanichsakul et al., its name “Naga” refers to a snake-like creature from various Southeast Asian folklores. Often related to water and Buddhism.
Moreover, “titan” is a nod to the large deities of Greek mythology, and “chaiyaphumensis” refers back to the Chaiyaphum province where his stays lay hidden for eons.
An enormous dinosaur from the SEA
The journey to discover Nagatitan began a decade ago when a neighborhood resident got here across a pile of giant bones on the shore of a communal pond throughout the dry season. From 2016 to 2024, teams from University College London (UCL), Mahasarakham University and other Thai institutions meticulously excavated the positioning.
The team recovered much of the skeleton, including vertebrae, ribs, parts of the pelvis and a 1.78-meter leg bone.
Nagatitan has reached a scale that’s obscure. Scientists estimate the large weighed about 27 tons, concerning the same as nine adult Asian elephants.
It stretched to 27 meters, making it so long as a contemporary blue whale. While it outranked famous dinosaurs similar to Diplodocus, it remained smaller than global heavyweights similar to the 60-ton Patagotitan.
Scientists classify Nagatitana as a somphospondylan titanosaur, a bunch of long-necked herbivores that ultimately led to a number of the largest land animals which have ever existed.
Thailand’s “Last” Titan
What distinguishes Nagatitana from its cousins are several unique skeletal features generally known as autapomorphies. Most importantly, its middle and posterior dorsal vertebrae have two different shapes in a particular bone structure called the hyposphene.
This structure is triangular in the course of the back, but towards the back it transforms right into a vertical ridge. It also has triangular “aliform appendages” on its vertebrae, which researchers haven’t observed in some other sauropod. These anatomical details prove that Nagatitan was a definite lineage, distinct from other local species similar to Phuwiangosaurus.
Nagatitan traversed a world defined by rising carbon dioxide levels and high global temperatures. Its homeland in northeastern Thailand was semi-arid plateaus and meandering river systems.
This environment likely supported a various ecosystem during which Nagatitan shared its habitat with freshwater sharks, crocodiles, and other herbivorous dinosaurs. Prof. Paul Upchurch of UCL notes that although large bodies are inclined to retain heat, sauropods successfully deal with hot temperature conditions, probably as a result of the particular plant food available on the time.
Moreover, researchers often call Nagatitana the “last titan” of Thailand. This is since the fossils come from the Khok Kruat Formation, the country’s youngest rock formation containing dinosaurs.
