恐龍卡第 1961 張，共 2 027 張

Yandusaurus

名字的意思： “Yandu lizard”1

吃：植物有喙的草食恐龍侏羅紀中期

Yandusaurus was a small, fast plant-eater that ran on two legs. It lived in China during the Middle Jurassic, about 168 to 162 million years ago. With big eyes and a beak, it was a speedy little dinosaur that could dodge bigger predators.2 1

生存年代

171 到 168 百萬年前4

侏羅紀中期

化石發現地

Sichuan Province, China2

長度

3 到 3.8 m (9.8 到 12 ft)2

體重

140 kg (309 lb)2

高度

1.2 m (3.9 ft)

估計值

最高速度

時速約 45 公里（28 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 7 隻狗一樣重

跟 4 隻狗從鼻子接到尾巴一樣長跟 21 根香蕉頭尾相接一樣長跟 28 顆西瓜一樣重跟 7 個幼兒園小朋友一樣重跟 4 個小學生一樣重能在 8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Yandusaurus 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)

Yandusaurus 時速約 45 公里 (28 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

Yandusaurus had large eyes, as shown by the curved jugal bone in its skull.2

Its teeth had a unique pattern of parallel vertical ridges, which Chinese researchers compared to the fingers of Buddha statues.2

The first Yandusaurus fossil was accidentally dug up by a composter machine near the Honghe dam in 1973.2

Yandusaurus had four toes on each foot and five fingers on each hand.2

The name Yandusaurus comes from Yandu, the ancient name for Zigong, which means 'salt capital' because the city was a center of salt mining.2

Scientists once thought Yandusaurus was a hypsilophodontid, but now they place it in a group called Neornithischia.2 3

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

?How big was Yandusaurus?

About 3 to 3.8 metres long and weighed around 140 kilograms.2

?What did Yandusaurus eat?

It was a plant-eater, or herbivore, with teeth that had a unique pattern of parallel ridges for chewing plants.2 1

?When did Yandusaurus live?

It lived during the Middle Jurassic period, about 168 to 162 million years ago.2 1

?Where was Yandusaurus found?

Its fossils were found in Sichuan Province, China, in the Lower Shaximiao Formation.2 1

給恐龍專家

學名: Yandusaurus
命名者: He 19794
類群: 有喙的草食恐龍
科 / 演化支: Neornithischia4
分類: Ornithischia4
岩石的年代: 171 到 168 百萬年 (Bajocian)4
岩層: Shaximiao4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 2 筆4
發現: Yandusaurus was named in 1979 by Chinese paleontologist He Xinlu. The first fossils were found in 1973 by workers using a composter machine near the Honghe dam in Sichuan, China.2
仍有爭議: Scientists are not sure exactly where Yandusaurus fits in the dinosaur family tree. It is currently placed in Neornithischia, but its exact relationships are still debated.2 3