恐龍卡第 1079 張，共 2 027 張

Longchengornis

名字的意思： “Dragon City bird”1

吃：肉早期鳥類白堊紀早期

Longchengornis was a tiny, bird-like dinosaur that lived about 120 million years ago. It had long, slender legs and big, hooked claws, and it probably ate meat like a small hunter.1

生存年代

121 到 113 百萬年前3

白堊紀早期

化石發現地

Liaoning Province, China1 2

長度

0.11 m (0.4 ft)1

體重

0.02 kg (0 lb)1

高度

0.075 m (0.2 ft)1

最高速度

時速約 19 公里（12 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？

牠有多高？

牠有多重？

跟 0 根香蕉一樣重

比一隻家貓還輕跟 3 塊積木排成一排一樣長小到能從椅子底下走過去能在 20 秒內飛越一整座足球場

Longchengornis 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)

Longchengornis 時速約 19 公里 (12 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

Longchengornis is known from just one partial skeleton and skull, called the holotype IVPP V10530.1

It had a wide upper arm bone with a unique circular depression near the shoulder joint.1

Its upper arm was slightly shorter than its lower arm, and its hand still had at least two claws.1

This bird lived during the Early Cretaceous, about 120 million years ago, in what is now China.1

Some scientists think Longchengornis might actually be the same species as another bird called Cathayornis yandica.1 2

It was named after the old name for the city of Chaoyang, which was Longcheng, meaning 'Dragon City'.1

Longchengornis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Longchengornis 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: Longchengornis
命名者: Hou 19973
類群: 早期鳥類
科 / 演化支: Cathayornithidae3
分類: Theropoda > Avialae3
岩石的年代: 121 到 113 百萬年 (Aptian)3
岩層: Jiufotang3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Longchengornis was named and described by the paleontologist Hou Lianhai in 1997. The fossil was found in the Jiufotang Formation in Liaoning, China.1 2
仍有爭議: Scientists are not sure if Longchengornis is a separate species or if it is actually the same as Cathayornis yandica.1 2