恐龍卡第 1251 張，共 2 027 張

Neimongosaurus

名字的意思： “Nei Mongol lizard”1

吃：植物奇特的羽毛恐龍白堊紀晚期

Neimongosaurus was a small, plant-eating dinosaur with a very long neck and a short tail. It lived in what is now China and Kazakhstan during the Late Cretaceous period, about 85 to 72 million years ago.1 4

生存年代

86 到 72 百萬年前4

白堊紀晚期

化石發現地

Fossils were found in the Iren Dabasu Formation in Inner Mongolia, China, and also in the Bostobe Formation in Kazakhstan.1 4

長度

2 到 3 m (6.6 到 9.8 ft)1

體重

最多 350 kg (772 lb)1

高度

1.2 m (3.9 ft)

估計值

最高速度

時速約 27 公里（17 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 18 隻狗一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 70 顆西瓜一樣重跟 18 個幼兒園小朋友一樣重跟 11 個小學生一樣重能在 13 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Neimongosaurus 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)

Neimongosaurus 時速約 27 公里 (17 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

Neimongosaurus had one of the longest necks of any non-bird theropod, with about 14 neck vertebrae. That is more than most other meat-eating dinosaurs had.1

Its tail was fairly short, with only 22 tail vertebrae, which is unusual for a theropod.1

The front of its lower jaw was toothless, like a beak, and it had only a few teeth further back. This helped it eat plants.1

Its arm bones show a large bump for the biceps muscle, which may have given it strong arms for pulling branches.1

The vertebrae in its spine were hollow and filled with air spaces, a feature also seen in some advanced bird-like dinosaurs.2

Scientists think Neimongosaurus was closely related to oviraptorosaurs because of its long neck and short tail.2

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

?How big was Neimongosaurus?

About 2 to 3 metres long. It weighed around 350 kg, which is about the weight of a small horse.1

?What did Neimongosaurus eat?

It ate plants. Its lower jaw had a toothless, beak-like front and only a few teeth with serrated edges in the back.1

?Did Neimongosaurus have feathers?

Scientists think it likely had feathers, because its relatives (therizinosaurs) are often shown with feathers, but no direct feather fossils have been found for this species.1

?When did Neimongosaurus live?

It lived during the Late Cretaceous period, about 85 to 72 million years ago, in what is now China.1 3

迷思破解王

迷思： Some people think all theropods were meat-eaters.

真相： Neimongosaurus was a theropod, but it was a herbivore. It ate plants, as shown by its toothless beak and leaf-shaped teeth.1 4

給恐龍專家

學名: Neimongosaurus
命名者: Zhang et al. 20014
類群: 奇特的羽毛恐龍
科 / 演化支: Therizinosauridae4
分類: Theropoda > Therizinosauria4
岩石的年代: 86 到 72 百萬年 (Santonian / Campanian)4
岩層: Iren Dabasu, Bostobe4
國家: 中國, 哈薩克4
化石紀錄: The Paleobiology Database 收錄 2 筆4
發現: In 1999, a team from the Ministry of Land and Resources in Inner Mongolia found two skeletons at Sanhangobi, about 20 km southwest of Erenhot. In 2001, scientists named the new species Neimongosaurus yangi, honoring Chinese paleontologist Yang Zhongjian.1
仍有爭議: Scientists are not sure exactly where Neimongosaurus sits on the family tree. Some studies place it outside the therizinosaurid group, while others put it inside, close to Therizinosaurus.1