恐龍卡第 1580 張，共 2 027 張

Sanxiasaurus

名字的意思： “Sanxia lizard, after the Three Gorges (Sanxia) of the Yangtze River”1

吃：植物有喙的草食恐龍侏羅紀早期到侏羅紀中期

Sanxiasaurus was a small, plant-eating dinosaur that lived in what is now China about 170 million years ago. It is the oldest neornithischian dinosaur ever found in Asia. This little dinosaur probably ran on its two hind legs and used its beak to nibble on plants.1 3

生存年代

184 到 171 百萬年前3

侏羅紀早期到侏羅紀中期

化石發現地

Laojun Village, Yunyang County, Chongqing Municipality, China1 3

長度

1.7 m (5.6 ft)2

體重

12 kg (26 lb)2

高度

0.55 m (1.8 ft)

估計值

最高速度

時速約 35 公里（22 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 3 隻家貓一樣重

跟 3 隻家貓從鼻子接到尾巴一樣長跟 9 根香蕉頭尾相接一樣長跟 100 根香蕉一樣重能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Sanxiasaurus 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)

Sanxiasaurus 時速約 35 公里 (22 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

Sanxiasaurus is the oldest neornithischian dinosaur known from Asia, living about 170 million years ago.1

Its fossils were discovered in 2016 by a field team from the Chongqing Bureau of Geological and Mineral Resource Exploration and Development.1

The only known skeleton includes 55 bones, such as vertebrae, arm bones, leg bones, and parts of the feet.1 3

Scientists think Sanxiasaurus was a ground-dwelling herbivore that walked on two legs.3

Sanxiasaurus was named after the Three Gorges (Sanxia) of the Yangtze River, where it was found.1

It was a basal neornithischian, meaning it was an early relative of later plant-eating dinosaurs like Iguanodon.1

Sanxiasaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Sanxiasaurus 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: Sanxiasaurus
命名者: Hu Dai et al. 20193
類群: 有喙的草食恐龍
科 / 演化支: Neornithischia3
分類: Ornithischia3
岩石的年代: 184 到 171 百萬年 (Toarcian / Aalenian)3
岩層: Xintiangou3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Sanxiasaurus was named and described in 2019 by Chinese paleontologist Ning Li and colleagues. The fossils were found in 2016 in the Xintiangou Formation of Yunyang County, Chongqing, China.1
仍有爭議: Scientists are still debating exactly how Sanxiasaurus is related to other early neornithischians, such as Agilisaurus and Hexinlusaurus.1