恐龍卡第 0041 張，共 2 027 張

Agilisaurus

名字的意思： “agile lizard”1

吃：植物有喙的草食恐龍侏羅紀中期到侏羅紀晚期

Agilisaurus was a tiny, speedy plant-eater that darted through the forests of ancient China. It had a beak for snipping plants and long legs for running fast. This little dinosaur is one of the most complete small ornithischian skeletons ever found.2

生存年代

171 到 155 百萬年前3

侏羅紀中期到侏羅紀晚期

化石發現地

Dashanpu Quarry near Zigong, Sichuan Province, China2 3

長度

1.2 到 1.7 m (3.9 到 5.6 ft)2

體重

40 kg (88 lb)2

高度

0.6 m (2 ft)2

最高速度

時速約 44 公里（27 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？

牠有多重？

跟 2 隻狗一樣重

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 10 隻家貓一樣重跟 8 顆西瓜一樣重跟 2 個幼兒園小朋友一樣重跟 1 個小學生一樣重能在 8.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Agilisaurus 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)

Agilisaurus 時速約 44 公里 (27 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

Agilisaurus had a lower leg bone (tibia) that was longer than its upper leg bone (femur), which made it an extremely fast runner.2

Its skeleton is one of the most complete small ornithischian skeletons ever found, missing only a few parts of the left forelimb and hind limb.2

The wavy enamel on its teeth was once thought to be unique to hadrosaurs, but Agilisaurus had it too.2

Agilisaurus may have been a burrow dweller because its tail lacked stiffening bony struts.2

Based on its scleral rings (eye bones), scientists think Agilisaurus was active during the day, unlike many larger herbivorous dinosaurs.2

The only known skeleton was discovered in 1984 while workers were building the Zigong Dinosaur Museum, where it now lives.2

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

?How big was Agilisaurus?

Agilisaurus was about 1.2 to 1.7 metres (3.9 to 5.6 feet) long, 60 centimetres (2.0 feet) tall at the hip, and weighed around 40 kilograms (88 pounds).2

?What did Agilisaurus eat?

Agilisaurus was a plant-eater. It had leaf-shaped teeth for chewing tough plants and a beak to snip off leaves.2 1

?How fast could Agilisaurus run?

Agilisaurus was an extremely fast runner. Its lower leg bone was longer than its upper leg bone, which helped it sprint on two legs.2

?When did Agilisaurus live?

Agilisaurus lived during the Middle Jurassic Period, about 168 to 161 million years ago.2 1

迷思破解王

迷思： Some people think Agilisaurus was a slow, clumsy plant-eater.

真相： Actually, its long legs and lightweight skeleton show it was one of the fastest small dinosaurs, able to sprint quickly.2

給恐龍專家

學名: Agilisaurus
命名者: Peng 19903
類群: 有喙的草食恐龍
科 / 演化支: Neornithischia3
分類: Ornithischia3
岩石的年代: 171 到 155 百萬年 (Bajocian / Oxfordian)3
岩層: Shaximiao3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Agilisaurus was named by Chinese paleontologist Peng Guangzhou in 1990. The only skeleton was found in 1984 during construction of the Zigong Dinosaur Museum in Sichuan, China.2
仍有爭議: Scientists still debate exactly where Agilisaurus fits in the dinosaur family tree. It has been placed in several different groups over the years.2