恐龍卡第 0501 張，共 2 027 張

Deinonychus

名字的意思： “terrible claw”1

吃：肉迅猛龍類白堊紀早期到白堊紀晚期

Deinonychus was a fast, smart hunter with a huge sickle-shaped claw on each foot. It used those claws to slash at prey, and its stiff tail helped it keep balance while running and fighting.2

生存年代

143 到 94 百萬年前5

白堊紀早期到白堊紀晚期

化石發現地

Fossils have been found in the United States, especially Montana, and also in Brazil.5 1

長度

3 到 3.4 m (9.8 到 11 ft)2

體重

70 kg 到 100 kg (154 到 220 lb)2

高度

1 到 1.2 m (3.3 到 3.9 ft)2

最高速度

時速約 40 公里（25 英里）

跑步: Molina-Perez & Larramendi 2019

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 5 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 20 顆西瓜一樣重跟 5 個幼兒園小朋友一樣重跟 3 個小學生一樣重能在 9 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Deinonychus 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)

Deinonychus 時速約 40 公里 (25 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

Deinonychus had a huge, curved claw on the second toe of each foot. That claw was about 13 centimetres (5 inches) long and was probably used like a slashing weapon.2

Its tail was stiffened by long bony rods, which helped it balance perfectly when it ran or attacked.2 1

Deinonychus had very flexible wrists, so it could grab and hold prey with its long, clawed hands.1

The name 'Deinonychus' means 'terrible claw', because of that huge foot claw.1

Deinonychus lived during the Early Cretaceous Period, about 145 to 100 million years ago.2

Deinonychus was the model for the 'raptor' dinosaurs in the movie Jurassic Park.2

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

?How big was Deinonychus?

About 3.4 metres (11 feet) long and weighed around 73 kilograms (160 pounds).3

?What did Deinonychus eat?

It was a meat-eater that ate plant-eating dinosaurs and other animals like mammals.3

?When did Deinonychus live?

It lived during the Early Cretaceous Period, about 115 to 108 million years ago.3

?Where was Deinonychus found?

Fossils have been found in the United States, in Montana, Utah, Wyoming, and Oklahoma.3

?Was Deinonychus a raptor?

It is a dromaeosaur, which is the group people often call raptors. It was a close relative of Velociraptor.3

?How fast could Deinonychus run?

Probably up to about 40 km/h (25 mph), about as fast as a fast human runner. This is an estimate from a dinosaur book. It had a light body and long legs.4

?Did Deinonychus hunt in packs?

It may have hunted in groups, because several Deinonychus fossils have been found near the same prey, but scientists are not sure.4

?Why did Deinonychus have a big claw?

The huge sickle-shaped claw on each foot was used to slash at prey or help it climb and hold onto smaller animals.3

?Was Deinonychus bigger than Velociraptor?

Yes, Deinonychus was bigger than Velociraptor. It was about 3.4 metres long, while Velociraptor was only about 2 metres long.3

?Is Deinonychus a dinosaur?

Yes, Deinonychus is a dinosaur. It is a small theropod dinosaur from the Early Cretaceous.3

迷思破解王

迷思： Some people think Deinonychus was a Jurassic dinosaur, like in Jurassic Park.

真相： Deinonychus actually lived in the Early Cretaceous Period, not the Jurassic.2

給恐龍專家

學名: Deinonychus
命名者: Ostrom 19695
類群: 迅猛龍類
科 / 演化支: Dromaeosauridae5
分類: Theropoda > Dromaeosauridae5
岩石的年代: 143 到 94 百萬年 (Berriasian / Cenomanian)5
岩層: Cloverly, Antlers, Cedar Mountain5
國家: 美國, 巴西5
化石紀錄: The Paleobiology Database 收錄 47 筆5
發現: Deinonychus was discovered in 1964 by Grant E. Meyer and John Ostrom near Bridger, Montana. They dug up more than 1000 bones from at least three animals.1
仍有爭議: Scientists still debate exactly how Deinonychus used its big foot claw, whether it slashed or stabbed its prey.2