New dinosaur species Nagatitan chaiyaphumensis

Sarah Kuta· May 21, 2026 · 1:15 AM UTC ·4 min read · 0 reactions · 0 comments · 42 views

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Paleontologists have identified a new dinosaur species named Nagatitan chaiyaphumensis, discovered in Thailand. This long-necked, plant-eating dinosaur lived between 100 million and 120 million years ago and may be the largest dinosaur found in Southeast Asia. The discovery was made after a local man spotted unusual rocks near a pond, which turned out to be fossilized bones.

Key facts

▪Nagatitan chaiyaphumensis is a long-necked, plant-eating dinosaur that lived in Thailand during the Cretaceous period.
▪The dinosaur likely measured over 88 feet long and weighed nearly 30 tons.
▪The fossils were discovered in 2016 and the project resumed in 2023 with funding from the National Geographic Society.

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Smithsonian Magazine · Sarah Kuta

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Original publisher	Smithsonian Magazine
Canonical URL	https://www.smithsonianmag.com/smart-news/a-man-spotted-strange-looking-rocks-near-a-pond-in-thailand-they-turned-out-to-be-the-bones-of-a-massive-new-dinosaur-species-180988744/
Publication time	Thu, 21 May 2026 01:15:35 +0000
Retrieval time	2026-05-21T01:35:03.222Z
Last seen	2026-05-21T01:35:03.222Z
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Opening excerpt (first ~120 words) tap to expand

Cool Finds A Man Spotted Strange-Looking Rocks Near a Pond in Thailand. They Turned Out to Be the Bones of a Massive New Dinosaur Species Paleontologists have dubbed the long-necked, plant-eating creature “Nagatitan chaiyaphumensis.” It’s the 14th named dinosaur from Thailand, and it might be the biggest one ever found in Southeast Asia Sarah Kuta | Daily Correspondent May 15, 2026 ShareCopy linkEmailSMSFacebookXRedditLinkedInBlueskyPrintAdd as preferred source Nagatitan chaiyaphumensis was a long-necked, plant-eating dinosaur that lived in what is now Thailand between 100 million and 120 million years ago. Patchanop Boonsai Paleontologists in Thailand have identified a new dinosaur—and it may be the largest one ever unearthed in Southeast Asia.

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