恐龍卡第 0805 張，共 2 027 張

Hexing

名字的意思： “like a crane”1

吃：植物似鳥龍類白堊紀早期

Hexing was a small, fast dinosaur that looked a bit like a modern ostrich. It lived in what is now China during the Early Cretaceous period, about 125 to 120 million years ago.2 1

生存年代

126 到 120 百萬年前4

白堊紀早期

化石發現地

Xiaobeigou, Liaoning province, China1

長度

1 到 1.6 m (3.3 到 5.2 ft)1

高度

0.64 m (2.1 ft)

估計值

最高速度

時速約 51 公里（32 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

跟 3 隻家貓從鼻子接到尾巴一樣長跟 9 根香蕉頭尾相接一樣長能在 7.1 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Hexing 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)

Hexing 時速約 51 公里 (32 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

Hexing is one of the oldest known ornithomimosaurs, the group of ostrich-like dinosaurs.1

Its name means 'like a crane' in Chinese, and its species name means 'with slender wings'.1

The only fossil of Hexing was first found by a local farmer, who tried to make it look more valuable by adding fake parts. Scientists later removed those fake bits.1

Hexing had a very long hind leg compared to its thigh, which helped it run fast.3

Unlike later ornithomimosaurs, Hexing still had teeth in the front of its upper jaw.3

Hexing lived alongside many other amazing animals in the Jehol Biota, including early birds, mammals, and even feathered dinosaurs.3

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

?How big was Hexing?

Hexing was small, but its exact length is unknown because most of its backbone is missing. Comparing its thighbone to a similar dinosaur, Shenzhousaurus, which was 1.6 metres (about 5.2 feet) long, Hexing was probably smaller.1

?Did Hexing have teeth?

Yes, Hexing had a few small conical teeth in the front of its lower jaw, but its upper jaw was toothless. This is different from later ornithomimosaurs, which had no teeth at all.1

?When did Hexing live?

Hexing lived during the Early Cretaceous period, about 139 to 128 million years ago, based on the rocks where it was found. The page says about 125 to 120 million years ago, but the source gives a wider range.1 4

?Was Hexing a dinosaur?

Yes, Hexing was a theropod dinosaur, specifically an ornithomimosaur, which is a group of ostrich-like dinosaurs. It was not a bird, even though it looked a bit like an ostrich.1 3

給恐龍專家

學名: Hexing
命名者: Jin et al. 20124
類群: 似鳥龍類
科 / 演化支: Ornithomimosauria4
分類: Theropoda > Ornithomimosauria4
岩石的年代: 126 到 120 百萬年 (Barremian / Aptian)4
岩層: Yixian4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Hexing was named and described in 2012 by Jin Liyong, Chen Jun, and Pascal Godefroit. The fossil was found at Xiaobeigou in Liaoning, China, in rocks that are about 128 to 139 million years old.1
仍有爭議: Scientists are not sure whether Hexing or Shenzhousaurus was the more primitive ornithomimosaur, because the fossils of both are incomplete.3