恐龍卡第 1010 張，共 2 027 張

Lanzhousaurus

名字的意思： “Lanzhou lizard”1

吃：植物有喙的草食恐龍白堊紀早期

Lanzhousaurus was a huge, plant-eating dinosaur with teeth so big they were among the largest of any herbivore ever! It lived in what is now China during the Early Cretaceous, about 130 million years ago. This gentle giant could grow as long as a school bus and weighed as much as a large elephant.1 2

生存年代

126 到 113 百萬年前5

白堊紀早期

化石發現地

Gansu Province, China1 2

長度

10 m (33 ft)1

體重

6 公噸 (13,200 lb)1

高度

2.9 m (9.5 ft)

估計值

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？

估計值

牠有多重？

跟 4 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1200 顆西瓜一樣重跟 8 整班小學生一樣重跟 13 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）

Lanzhousaurus 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)

Lanzhousaurus 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

Lanzhousaurus had 'astonishingly huge teeth' that were among the largest ever for any plant-eating creature.1

Its lower jaw was longer than one meter (over 3 feet), showing it was a very large dinosaur.1

The tooth enamel of Lanzhousaurus grew very rapidly, which helped its teeth stay strong.1

Lanzhousaurus lived during the Early Cretaceous period, about 130 million years ago.1 2

It was a styracosternan iguanodont, a group of beaked, plant-eating dinosaurs that walked on four legs but could stand on two.1

Scientists think Lanzhousaurus weighed about 6 metric tons (6.6 short tons), as heavy as a large elephant.1

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

?How big was Lanzhousaurus?

It was about 10 meters long and weighed around 6 metric tons, as heavy as a large elephant.1

?What did Lanzhousaurus eat?

It was a plant-eater that used its huge teeth to chew tough plants. Its teeth were among the largest of any herbivorous creature ever.1

?Why did Lanzhousaurus have such big teeth?

It had only 14 very large teeth per jaw, each about 10 cm long, to create a big chewing surface. Its tooth enamel grew very fast, about 0.24 mm per day.4

?When did Lanzhousaurus live?

It lived during the Early Cretaceous period, about 130 million years ago, in what is now China.1

給恐龍專家

學名: Lanzhousaurus
命名者: You et al. 20055
類群: 有喙的草食恐龍
科 / 演化支: Styracosterna5
分類: Ornithischia > Ornithopoda > Iguanodontia5
岩石的年代: 126 到 113 百萬年 (Barremian / Aptian)5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Lanzhousaurus was named by Chinese paleontologists You Hailu, Ji Qiang, and Li Daqing in 2005. They described it from a partial skeleton found in the Hekou Group of Gansu, China.1
仍有爭議: Scientists are still debating exactly where Lanzhousaurus fits in the dinosaur family tree. Some think it is a close relative of hadrosaurs, while others place it among earlier iguanodonts.1 2