Nagatitan chaiyaphumensis: Southeast Asia’s Largest Dinosaur Discovered in Thailand

Nagatitan chaiyaphumensis: Southeast Asia’s Largest Dinosaur Discovered in Thailand

June 20, 2026 discoverhiddenusacom Health

Nagatitan chaiyaphumensis is the largest dinosaur discovered in Southeast Asia, according to research published in Scientific Reports. Found in Thailand’s Chaiyaphum Province, this herbivorous sauropod measured 27 meters long and weighed approximately 27 metric tons, which is equivalent to the mass of nine adult Asian elephants.

Did You Know? The discovery included a massive leg bone measuring 1.78 meters in length.

How large was the Nagatitan chaiyaphumensis?

The dinosaur weighed roughly 27 metric tons and stretched 27 meters in length. Lead researcher Thitiwoot Sethapanichsakul, a PhD student, stated the specimen is likely at least 10 tons heavier than Dippy, a Diplodocus composite cast previously displayed at the Natural History Museum in London.

As a sauropod, the creature featured a long neck and tail with a relatively small head. These herbivores are recognized as the largest land animals to ever exist on Earth, a group that includes the Brontosaurus and Brachiosaurus.

Expert Insight: Samantha Carter notes that the “last titan” designation is significant because the fossils were recovered from one of Thailand’s youngest dinosaur-bearing rock formations. This suggests the presence of giant sauropods in the region later than previously documented.

Where was the fossil discovered?

Local residents first found the fossils a decade ago in the Chaiyaphum Province of northeast Thailand. This region is established as a known center for fossil discoveries.

Where was the fossil discovered?

A research team comprising University College London (UCL), the Museum Sirindhorn Thailand, and other Thai universities conducted the excavation. They recovered several ribs, vertebrae, parts of the pelvis, and a large leg bone.

What is the meaning behind the name?

According to University College London, the name Nagatitan chaiyaphumensis combines three distinct elements. It references the Naga, a snake from Southeast Asian folklore, the Titan giants of Greek mythology, and the Chaiyaphum Province where the bones were found.

A full-scale reconstruction of the dinosaur is now on display at the Thainosaur Museum in Bangkok.

What may happen next in Southeast Asian paleontology?

The discovery of this specimen in a young rock formation could lead researchers to investigate other similar geological layers in Thailand. This may result in the identification of other late-surviving giant herbivores.

Further analysis of the recovered pelvis and vertebrae may provide more data on the growth patterns of Southeast Asian sauropods. Such findings could potentially refine the timeline of dinosaur evolution in the region.

Frequently Asked Questions

  • When did Nagatitan chaiyaphumensis live? According to sciencedaily, the dinosaur lived approximately 100 to 120 million years ago.
  • Who led the research team? The lead researcher was Thitiwoot Sethapanichsakul, a PhD student.
  • What specific bones were recovered? The team found several vertebrae, ribs, parts of the pelvis, and a leg bone measuring 1.78 meters.

Do you think more giant dinosaur species remain undiscovered in Southeast Asia?