恐龍卡第 1523 張，共 2 027 張

Quaesitosaurus

名字的意思： “extraordinary lizard”1

吃：植物長脖子恐龍白堊紀晚期

Quaesitosaurus was a huge, long-necked plant-eater that lived in what is now Mongolia. Its skull was long and low, a bit like a horse's head, and it had peg-like teeth at the front of its mouth. Scientists only know it from a skull and jaw, so they guess what the rest of its body looked like.2 1

生存年代

84 到 72 百萬年前5

白堊紀晚期

化石發現地

Shar Tsav, Mongolia2 5

長度

12 到 23 m (39 到 75 ft)2 1

體重

最多 7 公噸 (15,400 lb)3

高度

5.1 m (17 ft)

估計值

最高速度

時速約 17 公里（11 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 5 台汽車一樣重

跟 5 台汽車排成一排一樣長跟 130 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1400 顆西瓜一樣重跟 9 整班小學生一樣重跟 16 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 21 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Quaesitosaurus 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)

Quaesitosaurus 時速約 17 公里 (11 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

Quaesitosaurus is known only from a skull and a nearly complete lower jaw. No bones from the rest of its body have been found.2

Its skull looks a lot like the skull of Diplodocus, so scientists think its body might have been similar too, with a long neck and tail.2

The name Quaesitosaurus means 'extraordinary lizard' because its skull was so unusual.2 1

Quaesitosaurus lived during the Late Cretaceous period, about 72 to 71 million years ago.2

It is a type of titanosaur, a group of huge, long-necked sauropods.2

The skull of Quaesitosaurus has pits on the front square bone, which helps tell it apart from its close relative Nemegtosaurus.2

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

?How big was Quaesitosaurus?

Scientists estimate it was about 12 metres (39 feet) long, based on its relatives. The Natural History Museum gives a length of 23 metres (75 feet), so the exact size is not certain.2 1

?What did Quaesitosaurus eat?

It was a plant-eater (herbivore) that ate soft plants like ferns, horsetails, and club mosses. Its peg-like teeth were good for stripping leaves.4

?When did Quaesitosaurus live?

It lived during the Late Cretaceous period, about 72 to 71 million years ago. Some sources say 86 to 84 million years ago, so the dates are not exact.2 1

?Is Quaesitosaurus a dinosaur?

Yes, it is a dinosaur. It is a type of sauropod called a titanosaur.2 1

給恐龍專家

學名: Quaesitosaurus
命名者: Kurzanov and Bannikov 19835
類群: 長脖子恐龍
科 / 演化支: Nemegtosauridae5
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria5
岩石的年代: 84 到 72 百萬年 (Campanian)5
岩層: Baruungoyot5
國家: 蒙古5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: In 1971, a team from the Soviet-Mongolian expedition found the skull and jaw at Shar Tsav in Mongolia. Scientists Kurzanov and Bannikov named it Quaesitosaurus orientalis in 1983.2 1
仍有爭議: Scientists are not sure if Quaesitosaurus is actually the same animal as Nemegtosaurus, because both are known only from skulls and look very similar.2