恐龍卡第 0828 張，共 2 027 張

Huanhepterus

名字的意思： “Huanhe River wing”1

吃：魚飛行爬蟲類白堊紀早期嚴格來說不是恐龍

Huanhepterus was a flying reptile that lived in China during the Early Cretaceous. It had a long, low skull with a crest on top and many slender teeth. Its wingspan was about as wide as a small car is long.1 2

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

137 到 100 百萬年前4

白堊紀早期

化石發現地

Sanshilipu, Qingyang County, Gansu Province, China2 1

長度

1.75 m (5.7 ft)3

翼展

2 到 2.5 m (6.6 到 8.2 ft)2 1

最高速度

時速約 52 公里（32 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？

牠有多長？

跟 4 隻家貓從鼻子接到尾巴一樣長跟 10 根香蕉頭尾相接一樣長能在 7.3 秒內飛越一整座足球場

Huanhepterus 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)

Huanhepterus 時速約 52 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

Huanhepterus was first discovered in May 1978 when a rock quarry explosion exposed a vertebra. The blast destroyed the right half of the fossil.2 1

It had about 26 pairs of teeth in the upper jaw and 25 in the lower jaw. The teeth were slender, sharp, and curved, and they became shorter toward the back of the mouth.2 1

Huanhepterus is very similar to Gnathosaurus, a pterosaur from the Late Jurassic of Europe. This helped scientists figure out that the rocks where Huanhepterus was found might be from the Jurassic-Cretaceous boundary.2 1

The crest on its skull was higher and thicker at the front of the snout and became lower and thinner toward the eyes, where it disappeared.2 1

Unlike some other pterosaurs, Huanhepterus did not have a fused notarium (a structure made of fused back vertebrae). Its neck vertebrae were long and slender.2 1

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

給恐龍專家

學名: Huanhepterus
命名者: Dong 19824
類群: 飛行爬蟲類
科 / 演化支: Lophocratia4
分類: Pterosauria > Pterodactyloidea4
岩石的年代: 137 到 100 百萬年 (Valanginian / Albian)4
岩層: Huachi-Huanhe4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Huanhepterus was named by Chinese paleontologist Dong Zhiming in 1982. The fossil was found by quarry workers in 1978, and Dong later visited the site to confirm it was a pterosaur.2 1
仍有爭議: Scientists are not sure whether the rocks that contain Huanhepterus are from the Late Jurassic or the Early Cretaceous. The age is still debated.2