恐龍卡第 0321 張，共 2 027 張

Caenagnathus

名字的意思： “recent jaw”4

吃：每樣都來一點奇特的羽毛恐龍白堊紀晚期

Caenagnathus was a big, bird-like dinosaur with a toothless beak. It lived in what is now Canada and the United States during the Late Cretaceous. Scientists think it ate both plants and meat, like a modern-day crow.4 1

生存年代

84 到 66 百萬年前4

白堊紀晚期

化石發現地

Alberta, Canada and South Dakota, USA4

長度

2.5 到 3.5 m (8.2 到 11 ft)1

體重

50 kg 到 100 kg (110 到 220 lb)1

高度

1 到 1.5 m (3.3 到 4.9 ft)2

最高速度

時速約 48 公里（30 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？

牠有多重？

跟 5 隻狗一樣重

跟 4 隻狗從鼻子接到尾巴一樣長跟 19 根香蕉頭尾相接一樣長跟 20 顆西瓜一樣重跟 5 個幼兒園小朋友一樣重跟 3 個小學生一樣重能在 7.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Caenagnathus 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)

Caenagnathus 時速約 48 公里 (30 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

Caenagnathus was first thought to be a bird because its jaw looked so bird-like.4

It was one of the largest caenagnathids, rivaling the size of Anzu wyliei.1

Its beak had three ridges on the tip, which may have helped it grip food.2

Caenagnathus lived alongside other caenagnathids like Citipes and Chirostenotes in the Dinosaur Park Formation.1

The type specimen is a lower jaw (mandible) found in Alberta, Canada.2

It was a ground-dwelling dinosaur that walked on two legs.4

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

?How big was Caenagnathus?

Caenagnathus was about 2.5 metres (8.2 feet) long and weighed around 85 to 100 kilograms (187 to 220 pounds). It was one of the largest caenagnathids, similar in size to its relative Anzu.3

?What did Caenagnathus eat?

Scientists think Caenagnathus ate both plants and meat, like a modern-day crow. Its toothless beak likely helped it grip a variety of foods.3

?Did Caenagnathus have feathers?

Yes, like all oviraptorosaurs, Caenagnathus would most likely have had a coat of feathers over its body.3

?Is Caenagnathus a dinosaur?

Yes, Caenagnathus is a dinosaur. It is a genus of caenagnathid oviraptorosaurian dinosaur from the Late Cretaceous.3

迷思破解王

迷思： Caenagnathus was a bird.

真相： Caenagnathus was a feathered dinosaur, not a bird. It belongs to the oviraptorosaur group.4

給恐龍專家

學名: Caenagnathus
命名者: Sternberg 19404
類群: 奇特的羽毛恐龍
科 / 演化支: Caenagnathidae4
分類: Theropoda > Oviraptorosauria4
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)4
岩層: Dinosaur Park, Hell Creek4
國家: 加拿大, 美國4
化石紀錄: The Paleobiology Database 收錄 8 筆4
發現: Caenagnathus was named by R. M. Sternberg in 1940 based on a jaw fossil from the Dinosaur Park Formation in Alberta, Canada.4
仍有爭議: Scientists are still debating whether some fossils belong to Caenagnathus or to other similar caenagnathids.1