恐龍卡第 1987 張，共 2 027 張

Yumenornis

名字的意思： “Yumen bird”1

吃：肉早期鳥類白堊紀早期

Yumenornis was an ancient bird that lived during the Age of Dinosaurs. It had feathers and could fly, but it also had teeth and claws like its dinosaur ancestors.2 1

生存年代

121 到 113 百萬年前3

白堊紀早期

化石發現地

Gansu Province, China1

體重

0.142 kg 到 0.143 kg (0 到 0 lb)1

最高速度

時速約 27 公里（17 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？

牠有多重？

跟 1 根香蕉一樣重

比一隻家貓還輕能在 14 秒內飛越一整座足球場

Yumenornis 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)

Yumenornis 時速約 27 公里 (17 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

Yumenornis lived about 121 to 113 million years ago, during the early Cretaceous period.2

The only known fossil of Yumenornis includes a partial breastbone, shoulder bones, and a complete right wing.1

Yumenornis was a relative of Gansus, another ancient bird from the same area in China.1

Scientists think Yumenornis was larger than its relative Gansus, based on its thicker upper arm bone.1

Yumenornis had a sharp, pointy breastbone shaped like a 90-degree angle, unlike the wider breastbone of Gansus.1

The tip of the Yumenornis wing was longer than its upper arm, giving it a long hand section.1

Yumenornis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Yumenornis 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: Yumenornis
命名者: Wang et al. 20133
類群: 早期鳥類
科 / 演化支: Ornithuromorpha3
分類: Theropoda > Avialae3
岩石的年代: 121 到 113 百萬年 (Aptian)3
岩層: Xiagou3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Yumenornis was named by Wang and colleagues in 2013 based on a fossil found in the Changma Basin of Gansu Province, China. The name honors Yumen City near the discovery site and Mr. Zhao-Chu Huang.1
仍有爭議: Because the only fossil lacks the legs and feet, scientists are not sure whether Yumenornis lived in trees, on the ground, or near water.1