恐龍卡第 1955 張，共 2 027 張

Xuwulong

名字的意思： “Xu-wu dragon, named after the courtesy name of Chinese geologist Wang Yue-lun”1

吃：植物有喙的草食恐龍白堊紀早期

Xuwulong was a duck-billed dinosaur that lived in what is now China during the Early Cretaceous. It walked on two legs and ate plants with its beak and many cheek teeth.1 2

生存年代

121 到 113 百萬年前5

白堊紀早期

化石發現地

Yujingzi Basin, Gansu Province, China1 3

長度

5 到 7 m (16 到 23 ft)2

體重

550 kg (1,200 lb)4

高度

2.1 m (6.9 ft)

估計值

最高速度

時速約 37 公里（23 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 28 隻狗一樣重

跟 7 隻狗從鼻子接到尾巴一樣長跟 39 根香蕉頭尾相接一樣長跟 110 顆西瓜一樣重跟 29 個幼兒園小朋友一樣重跟 17 個小學生一樣重能在 9.7 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Xuwulong 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)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Xuwulong 時速約 37 公里 (23 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

Xuwulong is one of the most primitive members of the hadrosauriform group, which includes the duck-billed dinosaurs.3

The only known skeleton of Xuwulong is almost complete, including a full skull, backbone, and left hip bone.1 3

Its lower jaw had a V-shaped front end and a jaw joint that sat at mid-height of the jawbone, which is different from other hadrosauriforms.3

Xuwulong lived about 121 to 113 million years ago, during the Aptian age of the Early Cretaceous.2

The fossil was found in the Xiagou Formation, which was once a river or lake environment.1

Xuwulong was named in 2011 by Chinese paleontologists You Hailu, Li Daqing, and Liu Weichang.1

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

?How big was Xuwulong?

Xuwulong was about 5 to 8 metres (16 to 26 feet) long, based on its skeleton being from an adult.5

?What did Xuwulong eat?

Xuwulong was a plant-eater (herbivore). It used its beak and many cheek teeth to chew plants.5

?When did Xuwulong live?

Xuwulong lived during the Early Cretaceous period, about 121 to 113 million years ago.1 5

給恐龍專家

學名: Xuwulong
命名者: You et al. 20115
類群: 有喙的草食恐龍
科 / 演化支: Hadrosauroidea5
分類: Ornithischia > Ornithopoda > Iguanodontia5
岩石的年代: 121 到 113 百萬年 (Aptian)5
岩層: Xiagou5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: The only known Xuwulong skeleton was discovered in 2006 in the Yujingzi Basin of Gansu, China, by a team including Chinese paleontologist You Hailu. It was named in 2011 after the courtesy name of geologist Wang Yue-lun.1
仍有爭議: Scientists are not sure exactly how Xuwulong is related to other early duck-billed dinosaurs, because it has a mix of primitive and advanced features.3