恐龍卡第 1485 張，共 2 027 張

Protoceratops

名字的意思： “first horned face”1

吃：植物角龍類白堊紀早期到白堊紀晚期

Protoceratops was a small, plant-eating dinosaur that lived in the Gobi Desert about 80 million years ago. It had a parrot-like beak and a bony frill on its neck, but no big horns like its later cousin Triceratops. It walked on all fours and was about the size of a large sheep.1 2

生存年代

121 到 72 百萬年前5

白堊紀早期到白堊紀晚期

化石發現地

Mongolia and Inner Mongolia, China1 5

長度

2 到 2.5 m (6.6 到 8.2 ft)1

體重

62 kg 到 104 kg (137 到 229 lb)1

高度

0.76 m (2.5 ft)3

最高速度

時速約 38 公里（24 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 2.5 隻狗從鼻子接到尾巴一樣長跟 14 根香蕉頭尾相接一樣長跟 21 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 9.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Protoceratops 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)

Protoceratops 時速約 38 公里 (24 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

Protoceratops laid soft-shelled eggs, which is rare for dinosaurs.1

A famous fossil called the Fighting Dinosaurs shows a Protoceratops locked in battle with a Velociraptor.1

Juvenile Protoceratops could walk on two legs, but adults walked on all fours.1

The frill on its neck was probably used for display or to protect the neck during fights.1

Protoceratops had a horn on its nose, and one species, P. hellenikorhinus, had two small horns side by side.1

Its feet had wide, flat claws that were good for digging in sand.1

Protoceratops lived in groups and may have cared for its young.1

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

?How big was Protoceratops?

Protoceratops was about 2 to 2.5 metres (6.6 to 8.2 feet) long and weighed around 62 to 104 kilograms (137 to 229 pounds). That is roughly the size of a large sheep.1 2

?What did Protoceratops eat?

Protoceratops was a herbivore. It used its parrot-like beak and strong jaws to chop and grind tough plant material.1 4

?Did Protoceratops have horns?

It had a small horn on its nose, not big horns like Triceratops. One species, P. hellenikorhinus, had two small horns side by side on its nose.1

?When did Protoceratops live?

Protoceratops lived during the Late Cretaceous Period, about 75 to 71 million years ago.1 4

?Where did Protoceratops live?

Protoceratops lived in the Gobi Desert of Mongolia and China. Back then it was a dry, sandy environment.1 2

?Did Protoceratops fight Velociraptor?

Yes. A famous fossil called the Fighting Dinosaurs shows a Protoceratops and a Velociraptor locked in combat. They probably died together in a struggle.1

?Could Protoceratops walk on two legs?

Juvenile Protoceratops could walk on two legs if needed, but adults walked on all fours.1

迷思破解王

迷思： Protoceratops was a direct ancestor of Triceratops.

真相： Protoceratops was an early relative of Triceratops, but it was not a direct ancestor. It belonged to a side branch of the ceratopsian family tree.1 2

給恐龍專家

學名: Protoceratops
命名者: Granger and Gregory 19235
類群: 角龍類
科 / 演化支: Protoceratopsidae5
分類: Ornithischia > Ceratopsia5
岩石的年代: 121 到 72 百萬年 (Aptian / Campanian)5
岩層: Djadokhta, Bayan Mandahu, Baruungoyot5
國家: 蒙古, 中國5
化石紀錄: The Paleobiology Database 收錄 38 筆5
又名: Bainoceratops （舊名稱現在也算作同一種動物）5
發現: Protoceratops was named in 1923 by Walter Granger and William K. Gregory based on fossils found in the Gobi Desert of Mongolia.1 5
仍有爭議: Scientists are not sure whether the sail on its tail was used for display, swimming, or to help control body temperature.1