恐龍卡第 1937 張，共 2 027 張

Xianshanosaurus

名字的意思： “Xian Mountain lizard”1

吃：植物長脖子恐龍白堊紀早期

Xianshanosaurus was a huge, long-necked plant-eater that stomped through ancient China. It had spoon-shaped teeth and a tail that moved like a whip. This gentle giant lived alongside other big dinosaurs in a warm, wet habitat.1

生存年代

121 到 100 百萬年前3

白堊紀早期

化石發現地

Henan Province, China, in the Haoling Formation1 2

長度

10 到 100 m (33 到 328 ft)2

最高速度

時速約 15 公里（9 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？

跟 22 台汽車排成一排一樣長跟 560 根香蕉頭尾相接一樣長能在 24 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Xianshanosaurus 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)

Xianshanosaurus 時速約 15 公里 (9 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

Xianshanosaurus had spoon-shaped teeth with a ridge on the tongue side, similar to another sauropod called Euhelopus.1

Its tail vertebrae were procoelous, meaning they had ball-and-socket joints, which made its tail extra flexible.1

Unlike many titanosaurs, its dorsal ribs did not have air holes, and its haemal arches had a closed canal.1

It was large, but smaller than its neighbors Ruyangosaurus and Huanghetitan.1

Scientists think it lived in a group, because the PBDB lists it as gregarious.2

It lived about 121 to 100 million years ago, during the Early Cretaceous.2

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

?How big was Xianshanosaurus?

Nobody knows its exact size because only a partial skeleton has been found, but it was a large sauropod, though smaller than its neighbors Ruyangosaurus and Huanghetitan.1

?What did Xianshanosaurus eat?

It was a herbivore, meaning it ate plants. Its spoon-shaped teeth were good for stripping leaves off branches.3

?When did Xianshanosaurus live?

It lived during the Early Cretaceous period, about 121 to 100 million years ago.3

迷思破解王

迷思： Some people think Xianshanosaurus was a titanosaur, a type of sauropod with a very flexible tail.

真相： Scientists aren't sure. It might be a titanosaur, but some studies say it could be a different kind of sauropod, like a turiasaur or euhelopodid.1

給恐龍專家

學名: Xianshanosaurus
命名者: Lü et al. 20093
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae3
分類: Sauropodomorpha > Sauropoda > Macronaria3
岩石的年代: 121 到 100 百萬年 (Aptian / Albian)3
岩層: Haoling3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: It was named in 2009 by Lü Junchang and colleagues, based on a partial skeleton of a young animal found near Xian Mountain in China.1
仍有爭議: Scientists still debate where exactly Xianshanosaurus belongs in the sauropod family tree, with some thinking it's close to Daxiatitan and others not.1