恐龍卡第 0155 張，共 2 027 張

Archaeornithomimus

名字的意思： “ancient bird mimic”1 2

Archaeornithomimus was a fast, ostrich-like dinosaur that lived in Asia during the Late Cretaceous. It had a beak, long legs, and probably feathers. It could run quickly to escape predators or chase small prey.1

生存年代

90 到 72 百萬年前4

白堊紀晚期

化石發現地

Inner Mongolia, China, and Kazakhstan1 2 3

長度

3.4 m (11 ft)1

體重

71.5 kg (158 lb)1

高度

1.4 m (4.6 ft)

估計值

最高速度

時速約 66 公里（41 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 隻狗一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 19 根香蕉頭尾相接一樣長跟 14 顆西瓜一樣重跟 4 個幼兒園小朋友一樣重跟 2 個小學生一樣重能在 5.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Archaeornithomimus 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)

一匹飛奔的馬 時速約 65 公里 (40 mph)

Archaeornithomimus 時速約 66 公里 (41 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Its neck bones had air spaces inside, like modern birds, which made its neck lighter.1

Scientists think it had feathers that looked like those of an ostrich.1

It lived alongside the giant dinosaur Gigantoraptor and the predator Alectrosaurus.1

No stress fractures were found in its foot bones, meaning it probably didn't run too hard or too often.1

Its third toe bone was not pinched at the top, so its foot was not built for extreme speed like some other ornithomimids.1

The first fossils were found by an expedition led by Roy Chapman Andrews in 1923.1

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

?How big was Archaeornithomimus?

About 3.4 metres (11 feet) long and weighed over 71.5 kilograms (158 pounds).1

?What did Archaeornithomimus eat?

It was an omnivore with a horny beak, eating small mammals, plants, fruit, eggs, and even hatchlings of other dinosaurs.1

?Did Archaeornithomimus have feathers?

Yes, scientists think it had feathers that looked like those of an ostrich.1

?When did Archaeornithomimus live?

It lived during the Late Cretaceous period, about 96 million years ago.1

?Where was Archaeornithomimus found?

Its fossils were found in the Iren Dabasu Formation of Inner Mongolia, China.1

?Was Archaeornithomimus a dinosaur?

Yes, it was a theropod dinosaur, specifically an ornithomimosaurian.1

給恐龍專家

學名: Archaeornithomimus
命名者: Russell 19724
類群: 似鳥龍類
科 / 演化支: Ornithomimidae4
分類: Theropoda > Ornithomimosauria4
岩石的年代: 90 到 72 百萬年 (Coniacian / Campanian)4
岩層: Iren Dabasu, Dabrazhin4
國家: 中國, 哈薩克4
化石紀錄: The Paleobiology Database 收錄 3 筆4
發現: The first fossils were found in 1923 in Inner Mongolia by an American Museum of Natural History expedition. In 1933, Charles Gilmore named them Ornithomimus asiaticus. In 1972, Dale Russell gave them their own genus, Archaeornithomimus.1
仍有爭議: Scientists are not sure whether Archaeornithomimus was a true ornithomimid or a more primitive ornithomimosaur. Some studies place it inside the family, others outside.1