恐龍卡第 1992 張，共 2 027 張

Yunnanosaurus

名字的意思： “Yunnan lizard”1

吃：植物長脖子恐龍侏羅紀早期

Yunnanosaurus was an early long-necked dinosaur that lived in China during the Early Jurassic. It could walk on two legs or all fours and used its spoon-shaped teeth to munch on plants.1

生存年代

201 到 184 百萬年前4

侏羅紀早期

化石發現地

Yunnan Province, China (Lufeng Formation and Fengjiahe Formation)1 2

長度

7 到 13 m (23 到 43 ft)1

高度

2 到 4 m (6.6 到 13 ft)1

最高速度

時速約 18 公里（11 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？

跟 3 台汽車排成一排一樣長跟 72 根香蕉頭尾相接一樣長能在 20 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Yunnanosaurus 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)

Yunnanosaurus 時速約 18 公里 (11 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

Yunnanosaurus had more than sixty spoon-shaped teeth that were self-sharpening because they wore against each other as the animal fed.1

Its teeth were advanced for an early sauropodomorph and looked like those of later giant sauropods, but scientists think this similarity evolved separately.1

The largest species, Yunnanosaurus youngi, reached about 13 metres (42 feet) long, as big as a school bus.1

The first fossils were discovered by Chinese paleontologist Yang Zhongjian (also known as C. C. Young) in the early 1940s.1

Yunnanosaurus lived between about 201 and 183 million years ago, during the Early Jurassic Period.1 2

It could walk on two legs or on all fours, making it a versatile mover through its ancient environment.1

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

?How big was Yunnanosaurus?

The smallest species, Y. huangi, was about 7 metres (23 feet) long, while the largest, Y. youngi, reached about 13 metres (43 feet) long, roughly the size of a school bus.1 3

?What did Yunnanosaurus eat?

It was a herbivore that ate plants. Its spoon-shaped teeth were self-sharpening, and it fed on softer, less fibrous plants than later giant sauropods.1 3

?When did Yunnanosaurus live?

Yunnanosaurus lived during the Early Jurassic Period, about 201 to 183 million years ago.1 3

?Where was Yunnanosaurus found?

Its fossils were found in Yunnan Province, China. The first skeletons were discovered in the Lufeng Formation.1

?Did Yunnanosaurus have feathers?

No known fossils show feathers on Yunnanosaurus. It is not related to feathered dinosaurs like birds.1

?Could Yunnanosaurus walk on two legs?

Yes, it could walk on two legs or on all fours. It was a versatile mover that could switch between bipedal and quadrupedal walking.1

迷思破解王

迷思： Yunnanosaurus is often called a prosauropod, meaning it was a direct ancestor of sauropods.

真相： Scientists now place Yunnanosaurus in a group called Sauropodiformes, which is closer to true sauropods but not a direct ancestor.1

給恐龍專家

學名: Yunnanosaurus
命名者: Young 19404
類群: 長脖子恐龍
科 / 演化支: Sauropodiformes4
分類: Sauropodomorpha4
岩石的年代: 201 到 184 百萬年 (Hettangian / Pliensbachian)4
岩層: Lufeng, Fengjiahe4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 17 筆4
發現: Chinese paleontologist C. C. Young (Yang Zhongjian) named Yunnanosaurus in 1942 after finding many skeletons in Yunnan, China. The type species is Yunnanosaurus huangi.1
仍有爭議: Scientists are not sure whether Yunnanosaurus robustus is a separate species or just a larger individual of Yunnanosaurus huangi.1