恐龍卡第 1228 張，共 2 027 張

Nagatitan

名字的意思： “giant of Naga, a mythical serpent in Thai folklore”1

吃：植物長脖子恐龍白堊紀早期

Nagatitan was a giant, long-necked plant-eater that stomped through what is now Thailand about 113 million years ago. It was the biggest dinosaur ever found in Southeast Asia, as long as two school buses!1

生存年代

121 到 100 百萬年前4

白堊紀早期

化石發現地

Ban Pha Nang Sua locality, Chaiyaphum Province, northeastern Thailand4 1

長度

27 m (89 ft)1

體重

25 公噸到 28 公噸 (55,100 到 61,700 lb)2

高度

5.8 m (19 ft)

估計值

最高速度

時速約 11 公里（7 英里）

跑步, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多大？

牠有多長？

牠有多高？

估計值

牠有多重？

跟 5 頭大象一樣重

跟 6 台汽車排成一排一樣長跟 150 根香蕉頭尾相接一樣長跟 19 台汽車一樣重跟 5600 顆西瓜一樣重跟 35 整班小學生一樣重跟 62 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 33 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Nagatitan 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

牠有多快？

走路的人 時速約 5 公里 (3 mph)

Nagatitan 時速約 11 公里 (7 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Nagatitan is the largest dinosaur ever found in Southeast Asia, measuring about 27 metres (89 feet) long.1

It weighed as much as 25 to 28 tonnes, which is like 5 to 6 large elephants.2

Its backbone had two different shapes of joints, a feature not seen in other sauropods.2

Nagatitan lived about 113 million years ago, during the Early Cretaceous period.1

The fossils were found in a rock formation that also had fish, sharks, turtles, and crocodile-like animals.2

Scientists think Nagatitan grew so big because of warmer temperatures and more living space in Asia at that time.2

Nagatitan 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Nagatitan 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

你們都在問

關於 Nagatitan 最常被問的問題

?How big was Nagatitan?

Nagatitan was about 6 metres long. That makes it a large sauropod found in Southeast Asia.3 1

?What did Nagatitan eat?

Nagatitan was a plant-eater, so it ate leaves and other plants. It had a long neck to reach high vegetation.1

?When did Nagatitan live?

Nagatitan lived about 113 million years ago, during the Early Cretaceous period.1

?Where was Nagatitan found?

Nagatitan was found in Thailand, in a rock formation called the Khok Kruat Formation. The fossils were discovered in 2016 near a pond.3 2

?Why did Nagatitan grow so big?

Scientists think Nagatitan grew so big because of warmer temperatures and more living space in Asia at that time.2

?Is Nagatitan a dinosaur?

Yes, Nagatitan is a dinosaur. It is a type of long-necked sauropod dinosaur.3

迷思破解王

迷思： Some people think all long-necked dinosaurs were slow and sluggish.

真相： Nagatitan, like other sauropods, was a giant but likely moved in a steady, efficient way to find food, and it was not a slowpoke in the way you might imagine.1

給恐龍專家

學名: Nagatitan
命名者: Sethapanichsakul et al. 20264
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 121 到 100 百萬年 (Aptian / Albian)4
岩層: Khok Kruat4
國家: 泰國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Scientists found a partial skeleton in the Ban Pha Nang Sua locality in Thailand and named it Nagatitan chaiyaphumensis in 2026, after the Naga serpent and the Chaiyaphum Province.4 1
仍有爭議: Scientists are still debating exactly how Nagatitan is related to other long-necked dinosaurs, since its bones show a mix of features.2