恐龍卡第 1254 張，共 2 027 張

Nemegtosaurus

名字的意思： “Nemegt lizard”1

吃：植物長脖子恐龍白堊紀晚期

Nemegtosaurus was a long-necked plant-eater that lived in what is now Mongolia. It is known mostly from a single skull, so scientists have to guess what the rest of its body looked like.1

生存年代

90 到 66 百萬年前4

白堊紀晚期

化石發現地

Mongolia, in the Nemegt Basin of the Gobi Desert2 1

長度

13 m (43 ft)1

體重

20 公噸 (44,100 lb)3

高度

3.1 m (10 ft)

估計值

最高速度

時速約 12 公里（7 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 3 頭大象一樣重

跟 3 台汽車排成一排一樣長跟 72 根香蕉頭尾相接一樣長跟 13 台汽車一樣重跟 4000 顆西瓜一樣重跟 25 整班小學生一樣重跟 44 隻北極熊一樣重能在 30 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Nemegtosaurus 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)

Nemegtosaurus 時速約 12 公里 (7 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

Nemegtosaurus is only known from a skull and lower jaw, so its full body shape is a mystery.1

Its skull was lightly built and very long, with a snout that bent downward.2

The first complete sclerotic ring (a ring of bones in the eye) ever found in a sauropod was discovered in the Nemegtosaurus skull.2

It lived during the Late Cretaceous, about 72 to 68 million years ago.1

Nemegtosaurus had lance-shaped teeth with a crown-to-root ratio of 2:1.2

Its skull shows features similar to both Diplodocus and Dicraeosaurus, but it is placed in its own family, Nemegtosauridae.2 4

The occipital condyle (the ball that connects the skull to the neck) pointed downward and forward, meaning its head was held at an angle.2

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

?How big was Nemegtosaurus?

About 12 to 13 metres (39 to 43 feet) long and weighed around 20 tonnes (44,000 pounds).3 1

?What did Nemegtosaurus eat?

It was a plant-eater, but scientists are not sure exactly which plants it ate because no plant fossils were found in the Gobi Desert where it lived.3

?When did Nemegtosaurus live?

It lived during the Late Cretaceous Period, about 72 to 68 million years ago.1

?Is Nemegtosaurus a dinosaur?

Yes, it is a sauropod dinosaur, a long-necked plant-eater.3 1

?Where was Nemegtosaurus found?

Its skull was found in the Nemegt Basin in the Gobi Desert, Mongolia.3

?Could Nemegtosaurus defend itself?

An adult Nemegtosaurus, at about 12 metres long, may have been able to defend against the predator Tarbosaurus, but young ones would have been vulnerable.3

給恐龍專家

學名: Nemegtosaurus
命名者: Nowinski 19714
類群: 長脖子恐龍
科 / 演化支: Nemegtosauridae4
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria4
岩石的年代: 90 到 66 百萬年 (Coniacian / Maastrichtian)4
岩層: Tamayama, Subashi, Nemegt4
國家: 日本, 中國, 蒙古4
化石紀錄: The Paleobiology Database 收錄 3 筆4
發現: Nemegtosaurus was named by Polish paleontologist Aleksander Nowinski in 1971, based on a skull found by the Polish-Mongolian expedition in 1965 in the Nemegt Basin of the Gobi Desert.2 1
仍有爭議: Scientists are not sure what the rest of Nemegtosaurus's body looked like, because only its skull has been found.1