恐龍卡第 0135 張，共 2 027 張

Apatornis

名字的意思： “deceptive bird”1

吃：肉早期鳥類白堊紀晚期

Apatornis was a small, toothed bird that lived in the Late Cretaceous period, about 83.5 million years ago. It was a fast, ground-dwelling hunter that probably chased after small prey. Even though it could fly, it spent much of its time on the ground.1 2

生存年代

90 到 84 百萬年前2

白堊紀晚期

化石發現地

Kansas, USA1 2

長度

0.18 到 0.2 m (0.6 到 0.7 ft)1

高度

0.09 m (0.3 ft)

估計值

最高速度

時速約 24 公里（15 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 6 塊積木排成一排一樣長小到能從椅子底下走過去能在 16 秒內飛越一整座足球場

Apatornis 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)

Apatornis 時速約 24 公里 (15 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

Apatornis had at least one more rib attached to its hip vertebrae than its close relative Ichthyornis, and maybe more, because the whole hip bone wasn't preserved.1

Unlike Ichthyornis, Apatornis did not have ossified tendons covering the top of its sacral region, which is a unique feature.1

The only known fossil of Apatornis is a synsacrum, which is the fused vertebrae over the hips, and it was found in the Smoky Hill Chalk of Kansas.1

Apatornis was originally classified as a species of Ichthyornis, but scientists now think it's more closely related to modern birds.1

The type specimen of Apatornis was discovered by Othniel Charles Marsh in October 1872 at Butte Creek in Kansas.1

Apatornis lived during the Coniacian to Santonian stages, about 89.8 to 83.6 million years ago.2

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

你們都在問

關於 Apatornis 最常被問的問題

?How big was Apatornis?

It was very small, about 18 to 20 centimetres long, which is roughly the size of a modern sparrow.1

?What did Apatornis eat?

It was a ground-dwelling carnivore that probably chased after small prey like insects or tiny vertebrates.2

?Could Apatornis fly?

Yes, it could fly, but it spent much of its time on the ground hunting for food.1

?Is Apatornis a dinosaur?

Yes, Apatornis is a genus of ornithuran dinosaurs, specifically a small, toothed bird from the Late Cretaceous.1

迷思破解王

迷思： Apatornis was a close relative of Ichthyornis.

真相： Scientists used to think so, but in 2004, Julia Clarke showed that Apatornis is actually more closely related to modern birds than to Ichthyornis.1

給恐龍專家

學名: Apatornis
命名者: Marsh 18732
類群: 早期鳥類
科 / 演化支: Ornithurae2
分類: Theropoda > Avialae2
岩石的年代: 90 到 84 百萬年 (Coniacian / Santonian)2
岩層: Niobrara2
國家: 美國2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: Apatornis was named by Othniel Charles Marsh in 1873. He found the first fossil, a synsacrum, in October 1872 at Butte Creek in Kansas, USA.1
仍有爭議: Scientists are still debating whether Apatornis is a valid genus or just a variation of Ichthyornis, because the only fossil is so incomplete.1