恐龍卡第 0320 張，共 2 027 張

Caenagnathasia

名字的意思： “recent jaw from Asia”1

吃：每樣都來一點奇特的羽毛恐龍白堊紀晚期

Caenagnathasia was a tiny, feathered dinosaur that looked a bit like a bird. It had a beak and long legs, and it was one of the smallest dinosaurs ever found. It lived in Asia during the Late Cretaceous period.1

生存年代

94 到 72 百萬年前3

白堊紀晚期

化石發現地

Uzbekistan and China3 1

長度

0.61 m (2 ft)1

體重

1.4 kg (3 lb)1

高度

0.25 m (0.8 ft)

估計值

最高速度

時速約 21 公里（13 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？

牠有多高？

估計值

牠有多重？

跟 12 根香蕉一樣重

跟 3 根香蕉頭尾相接一樣長比一隻家貓還輕跟 12 根香蕉一樣重小到能從椅子底下走過去能在 17 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Caenagnathasia 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)

Caenagnathasia 時速約 21 公里 (13 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

Caenagnathasia is the smallest known oviraptorosaur and one of the smallest non-avian dinosaurs. Its skull was only about 7.6 centimetres (3 inches) long.1

It lived about 90 million years ago, making it the oldest known caenagnathoid.1

The first fossils were just two fused lower jaw bones, found in Uzbekistan.1

Scientists think it was feathered, like other oviraptorosaurs, and looked bird-like with a beak and long neck.1

In 2015, new bones were found, including vertebrae, a dentary, and a femur, which helped confirm it belonged to the Caenagnathidae family.1

The name honors Gerbert Genrikhovich Martinson, a scientist, in the species name martinsoni.1

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

?How big was Caenagnathasia?

It was tiny. About 0.6 metres (2 feet) long and weighed around 1.4 kilograms (3 pounds). Its skull was only about 7.6 centimetres (3 inches) long.1

?What did Caenagnathasia eat?

Scientists think it ate plants or small animals, because it had a beak and a special shelf in its mouth for grinding food, like other oviraptorosaurs.1 2

?Did Caenagnathasia have feathers?

Yes. It was a feathered dinosaur, like other oviraptorosaurs, and looked bird-like with a beak and long neck.1

?When did Caenagnathasia live?

It lived about 90 million years ago, during the Late Cretaceous period. It is the oldest known caenagnathoid.1

迷思破解王

迷思： Some people think Caenagnathasia was a bird because it had a beak and feathers.

真相： It was a dinosaur, not a bird. It belonged to a group of feathered theropods called oviraptorosaurs, which are closely related to birds but not birds themselves.1

給恐龍專家

學名: Caenagnathasia
命名者: Currie et al. 19943
類群: 奇特的羽毛恐龍
科 / 演化支: Caenagnathidae3
分類: Theropoda > Oviraptorosauria3
岩石的年代: 94 到 72 百萬年 (Turonian / Campanian)3
岩層: Bissekty, Iren Dabasu3
國家: 烏茲別克, 中國3
化石紀錄: The Paleobiology Database 收錄 7 筆3
發現: Caenagnathasia was named in 1994 by Philip J. Currie, Stephen Godfrey, and Lev Nessov. The first fossils were found near Dzharakuduk in Uzbekistan, in the Bissekty Formation.1
仍有爭議: Scientists are still debating exactly where Caenagnathasia sits in the dinosaur family tree. Some think it was a primitive member of the Caenagnathidae, while others suggest it might be more basal within Oviraptorosauria.1