恐龍卡第 0154 張，共 2 027 張

Archaeornithoides

名字的意思： “shaped like an ancient bird”1

吃：肉迅猛龍類白堊紀晚期

Archaeornithoides was a tiny, bird-like dinosaur that lived in what is now Mongolia. It was one of the smallest non-avian dinosaurs ever found, about the size of a chicken. Scientists think it may have been a close relative of birds.1

生存年代

84 到 72 百萬年前4

白堊紀晚期

化石發現地

Bayn Dzak, Mongolia1 4

長度

0.5 到 0.6 m (1.6 到 2 ft)1

最高速度

時速約 43 公里（27 英里）

跑步, 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？

跟 3 根香蕉頭尾相接一樣長能在 8.4 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Archaeornithoides 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)

Archaeornithoides 時速約 43 公里 (27 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

The only known fossil of Archaeornithoides is a tiny skull and jaw fragment, just 27 millimetres long.1

The fossil has bite marks on it, and scientists think a weasel-sized mammal called Deltatheridium may have bitten off the dinosaur's head.1

This dinosaur lived about 83 to 72 million years ago, during the Late Cretaceous period.2

Its name means 'shaped like an ancient bird' because it had many bird-like features in its skull.1

Some scientists think Archaeornithoides might be a baby of another troodontid dinosaur, but others believe it is a distinct species.1

The fossil was found in 1965 by a Polish-Mongolian expedition, but it wasn't named until 1992.1

Archaeornithoides 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Archaeornithoides 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 Archaeornithoides 最常被問的問題

?How big was Archaeornithoides?

About 50 to 60 centimetres long, based on the only known fossil, which was a juvenile. Adult size is not known for sure.1

?What did Archaeornithoides eat?

It was a carnivore, meaning it ate meat. Its small, smooth teeth were good for catching tiny prey.3 1

?Did Archaeornithoides have feathers?

No fossil feathers have been found with Archaeornithoides, but because it was a close relative of birds and troodontids, many scientists think it probably had feathers.1

?Is Archaeornithoides a bird?

No, it is a non-avian dinosaur, not a bird. But its skull had many bird-like features, which is why its name means 'shaped like an ancient bird'.1

迷思破解王

迷思： Archaeornithoides was a bird.

真相： It was a non-avian dinosaur, though it had many bird-like features and was once thought to be the closest relative of birds.1

給恐龍專家

學名: Archaeornithoides
命名者: Elzanowski and Wellnhofer 19924
類群: 迅猛龍類
科 / 演化支: Troodontidae4
分類: Theropoda > Troodontidae4
岩石的年代: 84 到 72 百萬年 (Campanian)4
岩層: Djadokhta4
國家: 蒙古4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: The fossil was found in 1965 at Bayn Dzak, Mongolia, by a Polish-Mongolian expedition. It was named Archaeornithoides deinosauriscus by Andrzej Elzanowski and Peter Wellnhofer in 1992.1
仍有爭議: Scientists are not sure if Archaeornithoides is a distinct species or a juvenile of another troodontid dinosaur like Saurornithoides or Byronosaurus.1