恐龍卡第 0393 張，共 2 027 張

Chaoyangsaurus

名字的意思： “Chaoyang lizard”1

吃：植物角龍類侏羅紀晚期到白堊紀早期

Chaoyangsaurus was one of the very first horned dinosaurs, a small plant-eater that lived in what is now China. It had a beak like a parrot and tiny teeth to munch on tough plants.2 1

生存年代

152 到 133 百萬年前3

侏羅紀晚期到白堊紀早期

化石發現地

Liaoning Province, China1 2

長度

1 到 1.1 m (3.3 到 3.6 ft)1 2

體重

6 kg (13 lb)1

高度

0.46 m (1.5 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 1.5 隻家貓一樣重

跟 2 隻家貓從鼻子接到尾巴一樣長跟 6 根香蕉頭尾相接一樣長大約跟一隻家貓一樣重跟 50 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）

Chaoyangsaurus 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)

Chaoyangsaurus 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

Chaoyangsaurus is the earliest known ceratopsian, or horned dinosaur, that scientists have found.2

Its skull was only about 14 centimetres long, about the size of a large apple.1

It had a beak made of horn on its upper jaw, with four bumps on the cutting edge.1

Chaoyangsaurus had two pointy teeth in the front of its upper jaw, called premaxillary teeth.1

The name Chaoyangsaurus went through several spellings before it was officially published in 1999.1

Its fossils were found in the Tuchengzi Formation, which is about 150 to 145 million years old.1 2

Chaoyangsaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Chaoyangsaurus 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: Chaoyangsaurus
命名者: Zhao et al. 19993
類群: 角龍類
科 / 演化支: Chaoyangsauridae3
分類: Ornithischia > Ceratopsia3
岩石的年代: 152 到 133 百萬年 (Kimmeridgian / Valanginian)3
岩層: Tuchengzi3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The first fossils of Chaoyangsaurus were found in 1976 by Cheng Zhengwu in Liaoning, China. It was officially named Chaoyangsaurus youngi by Zhao Xijin, Cheng Zhengwu, and Xu Xing in 1999.1
仍有爭議: Scientists are not sure whether Chaoyangsaurus was a very early ceratopsian or already a neoceratopsian, a more advanced horned dinosaur.1