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New Giant Dinosaur Species Identified From Fossils Unearthed in Thailand

Researchers say the 88-foot plant-eater is Thailand’s 14th named dinosaur and the first sauropod from the Lower Cretaceous Khok Kruat Formation.

  • Researchers identified a new giant sauropod species, Nagatitan chaiyaphumensis, in Thailand, according to a study published in Scientific Reports on Thursday, May 14.
  • Bones for the dinosaur were uncovered 10 years ago in northeastern Thailand, prompting lead author Thitiwoot Sethapanichsakul, a Thai PhD student at University College London, to name it "the last titan" because fossils were found in the country's youngest dinosaur-bearing rock formation.
  • The colossal plant-eater weighed 54,000 pounds and measured 88 feet, making it the largest sauropod ever discovered in Southeast Asia, which paleontologist Pedro Mocho called "the most complete sauropod specimen discovered from the Khok Kruat Formation."
  • "Naga" refers to a legendary Thai serpent, "Titan" invokes Greek mythology, and "chaiyaphumensis" signifies the origin in Chaiyaphum, where the dinosaur lived more than 100 million years ago during the Early Cretaceous.
  • As the 14th dinosaur named in Thailand, this discovery provides insight into how ancient climate and vegetation changes enabled giant dinosaurs to develop, and a life-size reconstruction is on display at the Thainosaur Museum at Asiatique in Bangkok.
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abc10 Sacramentoabc10 Sacramento
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New giant dinosaur species identified from fossils unearthed in Thailand

Meet Nagatitan chaiyaphumensis, a colossal dinosaur unearthed in Thailand. The giant lived 100 million years ago — here's what researchers found. (Patchanop Boonsai)

·Sacramento, United States
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Giant with a very long neck. Scientists uncover new dinosaur species

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The long-necked species weighed 27 tons and lived about 100 million years ago.

·Copenhagen, Denmark
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DR broke the news in Copenhagen, Denmark on Friday, May 15, 2026.
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