恐龍卡第 0386 張，共 2 027 張

Changmiania

名字的意思： “eternal sleeper”1

吃：植物有喙的草食恐龍白堊紀早期

Changmiania was a small, fast-running dinosaur that lived in what is now China. It had a beak for eating plants and might have dug burrows to sleep in. Two nearly complete skeletons were found in perfect lifelike poses, as if they were resting when they were buried.1 2

生存年代

126 到 120 百萬年前6

白堊紀早期

化石發現地

Lujiatun village, Liaoning Province, China6 1

長度

1 到 1.5 m (3.3 到 4.9 ft)1

體重

3 kg (7 lb)3

高度

0.49 m (1.6 ft)

估計值

最高速度

時速約 24 公里（15 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 25 根香蕉一樣重

跟 3 隻家貓從鼻子接到尾巴一樣長跟 8 根香蕉頭尾相接一樣長大約跟一隻家貓一樣重跟 25 根香蕉一樣重能在 15 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Changmiania 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)

Changmiania 時速約 24 公里 (15 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

Changmiania had a short neck with only six neck bones, which is unusual for dinosaurs and may have helped it dig.1 2

Its hip bones were tilted upward and partly covered the backbone, a feature seen in some digging mammals.1 2

The two known skeletons are so well preserved that they show no signs of weathering or scavenging, suggesting they were buried quickly while alive.1 2

Changmiania's hind legs were about twice as long as its front legs, making it a fast runner.1 2

Scientists think Changmiania might have been a facultative digger, meaning it could dig but did not live underground full time.1 2

Its name means 'eternal sleeper' in Chinese, because the fossils were found in sleeping-like poses.1

Changmiania lived about 125 to 119 million years ago during the Early Cretaceous period.6

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

?How big was Changmiania?

About 1.2 metres (4 feet) long. That is roughly the size of a small dog.4 5

?Did Changmiania dig burrows?

Yes, scientists think it could dig burrows. Its short neck, short forearms, and shovel-shaped snout are features that help digging animals.5 2 4

?What did Changmiania eat?

Changmiania was an herbivore, meaning it ate plants. It had a beak for snipping off leaves and other plant material.5 4

?How fast could Changmiania run?

Changmiania was a very fast runner. Its hind legs were about twice as long as its front legs, and its long, stiff tail helped it balance while running.4 2

迷思破解王

迷思： Some people think Changmiania was a true underground burrower like a mole.

真相： Scientists say it was probably a facultative digger that could dig but spent most of its time above ground, as shown by its long running legs.1 2

給恐龍專家

學名: Changmiania
命名者: Yang et al. 20206
類群: 有喙的草食恐龍
科 / 演化支: Thescelosauridae6
分類: Ornithischia6
岩石的年代: 126 到 120 百萬年 (Barremian / Aptian)6
岩層: Yixian6
國家: 中國6
化石紀錄: The Paleobiology Database 收錄 1 筆6
發現: Changmiania was named in 2020 by Yang Y., Wu W., Dieudonné P., and Godefroit P. based on two nearly complete skeletons found in the Lujiatun Beds of Liaoning, China.6 1
仍有爭議: Scientists are not sure if Changmiania really dug burrows, because the fossils lack detailed information about the surrounding rock and how they were buried.1 2