恐龍卡第 0385 張，共 2 027 張

Changmaornis

名字的意思： “Changma bird”1

吃：肉早期鳥類白堊紀早期

Changmaornis was a small, bird-like dinosaur that lived about 120 million years ago. It had long legs and blunt claws, and it probably spent much of its time walking on the ground or wading in water.1

生存年代

121 到 113 百萬年前2

白堊紀早期

化石發現地

Changma Township, Yumen City, Gansu Province, China1

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)

Changmaornis 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

Changmaornis is known from just a partial skeleton including foot bones, vertebrae, and part of the hip.1

Its third toe was the longest, which is different from its relative Gansus, where the fourth toe was longest.1

Changmaornis had blunt claws on its feet without strong flexor tubercles, suggesting it did not climb trees much.1

It lived alongside other early birds like Gansus, Yumenornis, and Jiuquanornis in the same ancient lake area.1

Scientists think Changmaornis may have been aquatic, like a modern loon or grebe, because its foot bones look similar.1

The name Changmaornis comes from Changma Town in China, where the fossil was dug up.1

Changmaornis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Changmaornis 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: Changmaornis
命名者: Wang et al. 20132
類群: 早期鳥類
科 / 演化支: Ornithuromorpha2
分類: Theropoda > Avialae2
岩石的年代: 121 到 113 百萬年 (Aptian)2
岩層: Xiagou2
國家: 中國2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: Changmaornis was named in 2013 by Wang Y.-M. and colleagues based on a fossil found in the Xiagou Formation of Gansu, China. The species name houi honors Professor Lian-Hai Hou, who named the first Mesozoic bird from China.1
仍有爭議: Scientists are not sure whether Changmaornis lived mostly on land or in water, because its skeleton is incomplete.1