恐龍卡第 0818 張，共 2 027 張

Hongshanornis

名字的意思： “Hongshan bird, after the Hongshan culture of ancient China”1

吃：肉早期鳥類白堊紀早期

Hongshanornis was a small, beaked bird that lived near lakes and marshes in Early Cretaceous China. It had long legs for wading in shallow water and a slender beak for catching fish or bugs. This bird is one of the earliest known beaked ornithurine birds, a group that includes modern birds.1

生存年代

126 到 120 百萬年前5

白堊紀早期

化石發現地

Inner Mongolia and Liaoning, China2 1

長度

0.2 到 0.3 m (0.7 到 1 ft)1

體重

0.042 kg 到 0.064 kg (0 到 0 lb)4

高度

0.14 m (0.5 ft)

估計值

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？

估計值

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

Hongshanornis 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)

Hongshanornis 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

Hongshanornis had a beak in both its upper and lower jaws, making it the earliest known beaked ornithurine bird.1

This bird had a predentary bone in its lower jaw, a feature once thought unique to ornithischian dinosaurs.1

Hongshanornis lived about 125 to 120 million years ago, during the Early Cretaceous period.2

Its long legs and short, less curved claws show it was a wading bird, not a tree-dweller.1

One fossil of Hongshanornis preserved gizzard stones (gastroliths), which helped it grind up food.3

Hongshanornis was originally thought to be toothless, but later studies found it had small teeth in both jaws.3

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

迷思破解王

迷思： Hongshanornis was completely toothless like modern birds.

真相： Scientists now know it had small teeth in both upper and lower jaws, though it also had a beak.3

給恐龍專家

學名: Hongshanornis
命名者: Zhou and Zhang 20055
類群: 早期鳥類
科 / 演化支: Hongshanornithidae5
分類: Theropoda > Avialae5
岩石的年代: 126 到 120 百萬年 (Barremian / Aptian)5
岩層: Yixian5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Hongshanornis was named by Zhou and Zhang in 2005. The first fossil, a nearly complete skeleton with feathers, was found in the Yixian Formation at Shifo, Ningcheng, Inner Mongolia, China.1 2
仍有爭議: Scientists still debate whether Hongshanornis was more closely related to modern birds than toothed ornithurines, or if teeth were lost several times in early bird evolution.1