恐龍卡第 0907 張，共 2 027 張

Jianchangnathus

名字的意思： “jaw from Jianchang County”1

吃：魚飛行爬蟲類侏羅紀中期到侏羅紀晚期嚴格來說不是恐龍

Jianchangnathus was a small flying reptile that soared over ancient China. It had a long tail and sharp teeth for catching fish. It was not a dinosaur, but a pterosaur, a cousin of dinosaurs.1 4

趣味小知識：翼龍在恐龍頭上飛來飛去，但牠們是恐龍的親戚，不是恐龍喔。

生存年代

168 到 152 百萬年前4

侏羅紀中期到侏羅紀晚期

化石發現地

Liaoning Province, China, near Linglongta in Jianchang County.1 2

翼展

1.2 m (3.9 ft)3

最高速度

時速約 39 公里（24 英里）

飛行, 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？

牠的翅膀有多寬？

跟 2.5 隻家貓從鼻子接到尾巴一樣長能在 9.7 秒內飛越一整座足球場

Jianchangnathus 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)

Jianchangnathus 時速約 39 公里 (24 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

Jianchangnathus had a big front branch on its cheekbone, which is a unique feature.1

The first three pairs of teeth in its lower jaw pointed strongly forward, helping it snatch fish.1

Its lower jaw had a convex, or bulging, top edge, which is different from many other pterosaurs.1

Scientists think its body was covered in fuzzy pycnofibers, and some fossils suggest these were brown.1

Jianchangnathus lived about 160 million years ago, during the Middle Jurassic period.1

It is closely related to Scaphognathus, a pterosaur from Germany, but Jianchangnathus lived in China.1 2

Jianchangnathus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Jianchangnathus 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。

迷思破解王

迷思： Some people think pterosaurs like Jianchangnathus were dinosaurs.

真相： Pterosaurs were flying reptiles, not dinosaurs. They are a separate group of reptiles that lived at the same time as dinosaurs.1

給恐龍專家

學名: Jianchangnathus
命名者: Cheng et al. 20124
類群: 飛行爬蟲類
科 / 演化支: Scaphognathidae4
分類: Pterosauria4
岩石的年代: 168 到 152 百萬年 (Bathonian / Kimmeridgian)4
岩層: Tiaojishan4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 3 筆4
發現: The first fossil was found near Linglongta, Jianchang County, China, and named by Cheng Xin and colleagues in 2012. A second, more complete skull was described in 2014.1 2
仍有爭議: Scientists are not sure about the exact age of the rocks where Jianchangnathus was found. They might be from the Middle Jurassic or the Early Cretaceous.2