恐龍卡第 0497 張，共 2 027 張

Daxiatitan

名字的意思： “Daxia giant”1

吃：植物長脖子恐龍白堊紀早期

Daxiatitan was a giant, long-necked plant-eater that lived in what is now China. It was one of the biggest dinosaurs ever found in that country, with a neck as long as a school bus!1

生存年代

126 到 113 百萬年前4

白堊紀早期

化石發現地

Gansu Province, China1 4

長度

23 到 30 m (75 到 98 ft)1

體重

23 公噸 (50,700 lb)1

高度

6.4 m (21 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 4 頭大象一樣重

跟 7 台汽車排成一排一樣長跟 170 根香蕉頭尾相接一樣長跟 15 台汽車一樣重跟 4600 顆西瓜一樣重跟 29 整班小學生一樣重跟 51 隻北極熊一樣重高到能從 3 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）

Daxiatitan 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)

Daxiatitan 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

Daxiatitan's neck was about 12 metres (39 feet) long, which is longer than a giraffe's neck.1

Only one partial skeleton of Daxiatitan has been found, including neck and back bones, a shoulder blade, and a thigh bone.1

The name Daxiatitan comes from the Daxia River, a river that flows near where the fossils were discovered.1

Daxiatitan lived about 122 million years ago, during the Early Cretaceous period.4

Scientists think Daxiatitan walked with a strong outward swing of its legs, based on the shape of its thigh bone.2

Daxiatitan is part of a group of sauropods called titanosaurs, which were some of the heaviest dinosaurs ever.1

Daxiatitan 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Daxiatitan 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 Daxiatitan 最常被問的問題

?How big was Daxiatitan?

Daxiatitan was huge, with its length estimated at 23 to 30 metres (75 to 98 feet) and its weight at about 23 tonnes. That makes it one of the largest dinosaurs known from China.1

?What did Daxiatitan eat?

Daxiatitan was a herbivore, meaning it ate plants. It used its very long neck to reach leaves high up in trees.3

?When did Daxiatitan live?

Daxiatitan lived during the Early Cretaceous period, about 122 million years ago.1

?Was Daxiatitan bigger than a T. rex?

Yes, Daxiatitan was much bigger than a T. rex. Daxiatitan was a sauropod that could reach 30 metres (98 feet) long, while T. rex was only about 12 metres (40 feet) long.1

給恐龍專家

學名: Daxiatitan
命名者: You et al. 20084
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 126 到 113 百萬年 (Barremian / Aptian)4
岩層: Upper4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Daxiatitan was named in 2008 by You Hailu, Li Daqing, Zhou Lingqi, and Ji Qiang. The fossils were found in the Hekou Group of rocks in Gansu, China.1
仍有爭議: Scientists are not sure exactly how Daxiatitan is related to other long-necked sauropods. Some studies place it with titanosaurs, while others group it with mamenchisaurids.1