恐龍卡第 1272 張，共 2 027 張

Nigersaurus

名字的意思： “Niger lizard”1

吃：植物長脖子恐龍白堊紀早期

Nigersaurus was a small, long-necked dinosaur that lived in Africa during the Early Cretaceous. It had a wide, flat mouth like a vacuum cleaner and ate soft plants close to the ground.2

生存年代

121 到 100 百萬年前5

白堊紀早期

化石發現地

Niger, Algeria, and Tunisia1

長度

9 到 15 m (30 到 49 ft)2 1

體重

4 公噸 (8,800 lb)2

高度

2.44 m (8 ft)3

最高速度

時速約 20 公里（12 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 2.5 台汽車一樣重

跟 3 台汽車排成一排一樣長跟 83 根香蕉頭尾相接一樣長跟 200 隻狗一樣重跟 800 顆西瓜一樣重跟 5 整班小學生一樣重跟 9 隻北極熊一樣重能在 18 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Nigersaurus 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)

Nigersaurus 時速約 20 公里 (12 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

Nigersaurus had a skull so light and delicate that scientists used CT scans to study it without breaking it.2

Its mouth was wide and faced straight down, perfect for munching plants near the ground.2

Nigersaurus replaced its teeth very fast, about once every month, which is much quicker than most dinosaurs.2

This dinosaur had a short neck for a sauropod, with only 13 neck bones.2

Nigersaurus lived in a floodplain environment with rivers, about 110 million years ago.2

Its brain was small, with tiny smell bulbs, but scientists got a good look at it from a fossil endocast.2

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

?How big was Nigersaurus?

Nigersaurus was about 9 to 14.1 metres long and weighed around 1.9 to 4 tonnes, about as heavy as a modern elephant.4

?What did Nigersaurus eat?

Nigersaurus ate soft plants like ferns, horsetails, and possibly angiosperms. It was a ground-level browser, gathering and slicing soft vegetation with its wide mouth.4 2

?When did Nigersaurus live?

Nigersaurus lived during the Early Cretaceous period, about 121 to 99 million years ago, specifically around 115 to 105 million years ago.1 4

?Where was Nigersaurus found?

Nigersaurus was found in the Elrhaz Formation in an area called Gadoufaoua, in Niger, Africa. It is also known from Algeria and Tunisia.4 1

?How many teeth did Nigersaurus have?

Nigersaurus had more than 500 teeth in its wide muzzle. It replaced them very quickly, about every 14 days, which is faster than most other dinosaurs.4

?Was Nigersaurus a dinosaur?

Yes, Nigersaurus was a sauropod dinosaur, specifically a rebbachisaurid sauropod. It belonged to the group Diplodocoidea.4 1

?Why did Nigersaurus have a wide mouth?

Nigersaurus had a wide, flat mouth that faced straight down, perfect for cropping soft plants close to the ground. It was like a vacuum cleaner for ferns and horsetails.4 2

?How fast could Nigersaurus replace its teeth?

Nigersaurus replaced its teeth very rapidly, about once every 14 days, which is about twice as fast as hadrosaurid dinosaurs.4 2

?Was Nigersaurus bigger than T. rex?

No, Nigersaurus was generally smaller than T. rex. It was about 9 to 14.1 metres long, while T. rex was about 12 to 13 metres long, but Nigersaurus was lighter, weighing only 1.9 to 4 tonnes compared to T. rex's 7 to 8 tonnes.4

?Did Nigersaurus have feathers?

No, Nigersaurus was a sauropod dinosaur, and sauropods did not have feathers. It had scaly skin, like other reptiles.4

迷思破解王

迷思： Some people think Nigersaurus was a giant like other sauropods.

真相： Nigersaurus was actually a small sauropod, only about 9 to 15 meters long and as heavy as an elephant.2

給恐龍專家

學名: Nigersaurus
命名者: Sereno et al. 19995
類群: 長脖子恐龍
科 / 演化支: Rebbachisauridae5
分類: Sauropodomorpha > Sauropoda > Diplodocoidea5
岩石的年代: 121 到 100 百萬年 (Aptian / Albian)5
岩層: Elrhaz5
國家: 尼日5
化石紀錄: The Paleobiology Database 收錄 3 筆5
發現: Nigersaurus was named in 1999 by Paul Sereno and his team, based on fossils found in the Ténéré Desert of Niger.5 2
仍有爭議: Scientists are still unsure exactly which plants Nigersaurus ate, because no stomach contents have been found.2