恐龍卡第 1977 張，共 2 027 張

Yizhousaurus

名字的意思： “Yizhou lizard, named after the Chuxiong Yi Autonomous Prefecture in Yunnan, China”1

吃：植物長脖子恐龍侏羅紀早期

Yizhousaurus was an early long-necked dinosaur that lived in what is now China during the Early Jurassic. It had a beautifully preserved skull, which is rare for its kind. This plant-eater walked on four legs and grew to about the size of a small bus.2 1

生存年代

200 到 193 百萬年前3

侏羅紀早期

化石發現地

Yunnan Province, China, in the Lufeng Formation1 2

長度

7 m (23 ft)2

高度

1.9 m (6.2 ft)

估計值

最高速度

時速約 29 公里（18 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

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能在 12 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Yizhousaurus 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)

Yizhousaurus 時速約 29 公里 (18 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

Yizhousaurus is one of the most complete early sauropodiform dinosaurs ever found, with a nearly whole skull and skeleton.1

Its skull had a short snout and a high, dome-shaped profile, which is unusual for early long-necked dinosaurs.2

The holotype skeleton was discovered in 2002 and excavated over about a month in October and November.1

Yizhousaurus lived during the Sinemurian age of the Early Jurassic, about 199 to 193 million years ago.3

Its name was first used in a 2010 scientific meeting, but it was not officially described until 2018.1

The fourth and fifth tail vertebrae of the holotype are fused together, which scientists think was a result of disease or injury.2

Yizhousaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Yizhousaurus 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。

給恐龍專家

學名: Yizhousaurus
命名者: Zhang et al. 20183
類群: 長脖子恐龍
科 / 演化支: Sauropodiformes3
分類: Sauropodomorpha3
岩石的年代: 200 到 193 百萬年 (Sinemurian)3
岩層: Lufeng3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The only known skeleton of Yizhousaurus was found in 2002 near Duwafang Village in Yunnan, China. It was named and described by scientists in 2018, after being mentioned at a conference in 2010.1 2
仍有爭議: Scientists are still debating exactly where Yizhousaurus sits on the family tree of sauropodiforms, because its skeleton has a mix of old and new features.2