恐龍卡第 1015 張，共 2 027 張

Largirostrornis

名字的意思： “large beak bird”1

吃：肉早期鳥類白堊紀早期

Largirostrornis was a small, early bird that lived during the time of dinosaurs. It had a big beak and sharp teeth, and it flew through ancient forests in China.1 2

生存年代

121 到 113 百萬年前4

白堊紀早期

化石發現地

Liaoning province, China1

長度

0.1 到 0.3 m (0.3 到 1 ft)1

體重

0.045 kg (0 lb)3

高度

0.064 m (0.2 ft)3

最高速度

時速約 28 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？

牠有多長？

牠有多高？

牠有多重？

跟 0.5 根香蕉一樣重

比一隻家貓還輕跟 9 塊積木排成一排一樣長小到能從椅子底下走過去能在 14 秒內飛越一整座足球場

Largirostrornis 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)

Largirostrornis 時速約 28 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

Largirostrornis had six teeth in its upper jaw and six in its lower jaw, which is why its species name means 'six-toothed'.1

This bird lived about 120 million years ago during the Early Cretaceous period.1

Its torso was longer than any other known enantiornithean bird at the time it was discovered.1

Largirostrornis had tall spines on its neck and back vertebrae, which helped support its muscles.1

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

The only known fossil of Largirostrornis was found in the Jiufotang Formation in China, a place famous for many early bird fossils.1

Largirostrornis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Largirostrornis 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: Largirostrornis
命名者: Hou 19974
類群: 早期鳥類
科 / 演化支: Cuspirostrisornithidae4
分類: Theropoda > Avialae4
岩石的年代: 121 到 113 百萬年 (Aptian)4
岩層: Jiufotang4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Largirostrornis was named and described by Chinese paleontologist Hou Lianhai in 1997, based on a single fossil found in Liaoning, China.1 2
仍有爭議: Scientists are not sure if Largirostrornis is a distinct species or if it is the same as Cathayornis yandica.1