恐龍卡第 0785 張，共 2 027 張

Haplocheirus

名字的意思： “simple hand”1

吃：肉肉食恐龍侏羅紀晚期

Haplocheirus was a small, speedy meat-eating dinosaur that lived in what is now China. It had a long, slender skull and lots of sharp teeth for catching small animals. Scientists think it was one of the earliest relatives of the weird, one-clawed alvarezsaur dinosaurs.1

生存年代

162 到 155 百萬年前4

侏羅紀晚期

化石發現地

Wucaiwan area, Xinjiang, China1 2

長度

2 m (6.6 ft)1

體重

21 kg 到 41 kg (46 到 90 lb)1

高度

0.6 m (2 ft)1

最高速度

時速約 43 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 4 隻家貓從鼻子接到尾巴一樣長跟 11 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 1.5 個小學生一樣重能在 8.4 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Haplocheirus 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)

Haplocheirus 時速約 43 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

Haplocheirus had more teeth than most other meat-eating dinosaurs, with up to 74 teeth in its jaws.1

Its name means 'simple hand' because its hand bones were simpler than those of later relatives.1

The only known fossil of Haplocheirus is almost perfectly preserved in three dimensions, which is very rare for a Jurassic dinosaur.1

Haplocheirus lived about 160 million years ago, during the Late Jurassic Period.1 3

It was one of the largest early alvarezsauroids, but still only about as long as a small car.1

The fossil of Haplocheirus was found with the bones of a crocodile-like reptile lying next to it.1

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

?How big was Haplocheirus?

It was about 2 metres (6.6 ft) long and weighed around 21 kilograms (46 lb), though an adult might have weighed up to 41 kilograms (90 lb).1

?What did Haplocheirus eat?

It ate small vertebrates, like lizards and early mammals, using its many sharp teeth.1

?When did Haplocheirus live?

It lived about 160 million years ago, during the Late Jurassic Period.1

?Is Haplocheirus a dinosaur?

Yes, it is a theropod dinosaur and one of the earliest relatives of the alvarezsaur group.1

迷思破解王

迷思： Some people think Haplocheirus used its strong thumb to dig for insects, like an anteater.

真相： Scientists are not sure. Its teeth and skull suggest it ate small vertebrates, not insects.1

給恐龍專家

學名: Haplocheirus
命名者: Choiniere et al. 20104
類群: 肉食恐龍
科 / 演化支: Alvarezsauroidea4
分類: Theropoda4
岩石的年代: 162 到 155 百萬年 (Oxfordian)4
岩層: Shishugou4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Haplocheirus was named in 2010 by Jonah Choiniere and colleagues based on a nearly complete skeleton found in the Shishugou Formation of China.1 3
仍有爭議: Scientists debate whether Haplocheirus is truly an early alvarezsauroid or belongs to a different group of theropods.1