恐龍卡第 0002 張，共 2 027 張

Abavornis

名字的意思： “ancestor bird”1

吃：肉早期鳥類白堊紀晚期

Abavornis was a tiny, primitive bird that lived alongside the dinosaurs. It had feathers and flew through the forests of ancient Uzbekistan. Only a single broken shoulder bone has been found, so it is a bit of a mystery bird.1

生存年代

94 到 90 百萬年前4

白堊紀晚期

化石發現地

Kyzylkum Desert, Navoi region, Uzbekistan1 2

長度

0.28 m (0.9 ft)3

高度

0.13 m (0.4 ft)

估計值

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？

牠有多長？

牠有多高？

估計值

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

Abavornis 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)

Abavornis 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

Abavornis is known from just one broken shoulder bone, called a coracoid.1

It lived about 92 million years ago during the Turonian age of the Late Cretaceous.1

Scientists think Abavornis was an enantiornithine, a group of primitive birds that had teeth and claws on their wings.1

This bird was named after the famous Argentine paleontologist José Bonaparte.1

A second, very similar shoulder bone has been found, but it might belong to the same species.1

Abavornis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Abavornis 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: Abavornis
命名者: Panteleyev 19984
類群: 早期鳥類
科 / 演化支: Alexornithidae4
分類: Theropoda > Avialae4
岩石的年代: 94 到 90 百萬年 (Turonian)4
岩層: Bissekty4
國家: 烏茲別克4
化石紀錄: The Paleobiology Database 收錄 2 筆4
發現: Abavornis was named by Russian paleontologist Andrey V. Panteleyev in 1998. The fossil was found in the Bissekty Formation of the Kyzylkum Desert in Uzbekistan.1
仍有爭議: Because only a single bone has been found, scientists are not completely sure that Abavornis really is a distinct kind of bird. It might turn out to be the same as another enantiornithine.1