恐龍卡第 0214 張，共 2 027 張

Avimimus

名字的意思： “bird mimic”1

吃：每樣都來一點奇特的羽毛恐龍白堊紀晚期

Avimimus was a small, fast-running dinosaur that looked a lot like a bird. It had a beak like a parrot and may have had feathers on its arms. Scientists think it lived in what is now Mongolia during the Late Cretaceous period.2 1

生存年代

84 到 66 百萬年前5

白堊紀晚期

化石發現地

Mongolia and possibly Alberta, Canada1 5

長度

1.5 m (4.9 ft)1

體重

14 kg (31 lb)3

高度

0.62 m (2 ft)

估計值

最高速度

時速約 38 公里（24 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 4 隻家貓一樣重

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跟 120 根香蕉一樣重能在 9.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Avimimus 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)

Avimimus 時速約 38 公里 (24 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

Avimimus had a large brain and big eyes, which helped it see well and think fast.2

Its legs were very long and slender, making it a fast runner. Its shins were longer than its thighs, just like in many speedy animals today.2

The bones in its hand were fused together, just like in modern birds. This is one reason scientists think it was very bird-like.2

A fossil bonebed in Mongolia contained at least ten Avimimus individuals together. This suggests they lived in groups, maybe for safety or to find mates.2

Avimimus had a beak with no teeth, but some later fossils show tiny teeth in the front of the upper jaw. Scientists are still studying this.2

When Avimimus was first discovered, scientists thought it had no tail. Later finds proved it did have a tail, just like other dinosaurs.2

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

?How big was Avimimus?

About 1.5 metres long and weighed around 15 kilograms.2 4

?Did Avimimus have feathers?

Yes, most scientists now agree Avimimus had feathers. Quill knobs on its arm bones suggest feathers were attached there.2 4

?What did Avimimus eat?

It probably ate both plants and small animals, making it an omnivore. Its beak had no teeth, though some fossils show tiny front teeth.2 1

?How fast could Avimimus run?

It was a very fast runner, with long legs and shins longer than its thighs. One source compares its speed to an ostrich, which can reach 70 km/h.2 4

?When did Avimimus live?

It lived during the Late Cretaceous period, about 80 to 75 million years ago.1 4

?Is Avimimus a bird?

No, Avimimus is a dinosaur, not a bird. It belonged to a group of bird-like dinosaurs called oviraptorosaurs.2

迷思破解王

迷思： Avimimus could fly.

真相： Some scientists once thought Avimimus could fly because it had bumps on its arm bones that might have held feathers. But most now agree it could not fly and was a fast runner instead.2

給恐龍專家

學名: Avimimus
命名者: Kurzanov 19815
類群: 奇特的羽毛恐龍
科 / 演化支: Oviraptorosauria5
分類: Theropoda > Oviraptorosauria5
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)5
岩層: Nemegt, Baruungoyot, Dinosaur Park5
國家: 蒙古, 加拿大5
化石紀錄: The Paleobiology Database 收錄 8 筆5
發現: Avimimus was named by Russian paleontologist Sergei Kurzanov in 1981. He found the fossils in Mongolia and thought they came from the Djadokhta Formation, but later scientists think they actually came from the Nemegt Formation.2 5
仍有爭議: Scientists are not sure what Avimimus ate. It might have been an herbivore, an insectivore, or an omnivore. The beak and possible tiny teeth give clues, but no one knows for sure.2