恐龍卡第 1325 張，共 2 027 張

Ornithomimus

名字的意思： “bird mimic”1

吃：植物似鳥龍類白堊紀晚期

Ornithomimus was a fast, ostrich-like dinosaur that lived in North America during the Late Cretaceous. It had a small toothless beak, long legs, and was covered in downy feathers. Adults even had wings on their arms, which they probably used for showing off to mates.1 2

生存年代

84 到 66 百萬年前6

白堊紀晚期

化石發現地

Alberta, Canada, and several states in the USA including Colorado, Montana, and Wyoming6 1

長度

3.8 m (12 ft)2

體重

170 kg (375 lb)2

高度

1.2 到 1.5 m (3.9 到 4.9 ft)3

最高速度

時速約 70 公里（43 英里）

跑步: Russell 1972 (ostrich-like speed)

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 8 隻狗一樣重

跟 4 隻狗從鼻子接到尾巴一樣長跟 21 根香蕉頭尾相接一樣長跟 34 顆西瓜一樣重跟 9 個幼兒園小朋友一樣重跟 5 個小學生一樣重能在 5.1 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Ornithomimus 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)

Ornithomimus 時速約 70 公里 (43 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Ornithomimus was one of the first feathered dinosaurs found in the Western Hemisphere. Paleontologist François Therrien discovered the feathers in 2008.2

Its brain was small and its sense of smell was poor, so it probably relied on its big eyes and good eyesight to find food and avoid danger.2

Young Ornithomimus did not have wings on their arms. Only adults grew the long, stiff feathers that formed wings, which they used for courtship displays.2

Ornithomimus could run very fast thanks to its long, powerful legs and big leg muscles. It probably escaped predators by sprinting away.2

Its fingers had long, straight claws that might have helped it grab branches or dig for food.2

The name Ornithomimus means 'bird mimic' because its feet looked a lot like a bird's feet.1

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

?How big was Ornithomimus?

Ornithomimus measured up to about 4 metres (13 feet) long and weighed up to 170 kilograms (375 pounds).4 5

?What did Ornithomimus eat?

Ornithomimus was probably an omnivore or plant-eater. It had a toothless beak and may have swallowed stones (gastroliths) to help grind up plants, like many birds do.1 5

?Did Ornithomimus have feathers?

Yes, Ornithomimus was covered in downy feathers. Adults also had long, stiff feathers on their arms that formed wings, used for display and courtship.1 5

?How fast could Ornithomimus run?

Ornithomimus could run very fast, probably between 30 and 60 km/h (19 to 37 mph), and maybe even up to 80 km/h (50 mph), as fast as an ostrich.5

?When did Ornithomimus live?

Ornithomimus lived during the Late Cretaceous period, about 74 to 66 million years ago.4

?Where was Ornithomimus found?

Fossils of Ornithomimus have been found in Canada (especially Alberta) and the United States (Colorado, Montana, Wyoming).1 4

?Was Ornithomimus a dinosaur?

Yes, Ornithomimus was a theropod dinosaur, but it was not a meat-eater like most theropods, it had a beak and ate plants or maybe small animals.1 4

?Why did Ornithomimus have wings?

Ornithomimus used its wings for courtship displays and to signal to others, not for flying.1 5

迷思破解王

迷思： Many people think Ornithomimus was a meat-eater like most other theropod dinosaurs.

真相： Ornithomimus had no teeth and a beak, so scientists think it was a plant-eater or an omnivore, not a carnivore.2

給恐龍專家

學名: Ornithomimus
命名者: Marsh 18906
類群: 似鳥龍類
科 / 演化支: Ornithomimidae6
分類: Theropoda > Ornithomimosauria6
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)6
岩層: Lance, Horseshoe Canyon, Denver6
國家: 美國, 加拿大6
化石紀錄: The Paleobiology Database 收錄 35 筆6
發現: The first Ornithomimus fossils were found in Colorado in 1889 by George Lyman Cannon. The famous paleontologist Othniel Charles Marsh named the dinosaur Ornithomimus velox in 1890.1
仍有爭議: Scientists are still debating what Ornithomimus ate. Some think it was a plant-eater, others think it ate insects, small animals, and maybe fruit too.1 2