恐龍卡第 1999 張，共 2 027 張

Yuzhoupliosaurus

名字的意思： “Yuzhou lizard”1

吃：肉蛇頸龍類侏羅紀中期嚴格來說不是恐龍

Yuzhoupliosaurus was a plesiosaur, a long-necked marine reptile that lived in the Middle Jurassic period. It swam in the waters of what is now China, and it was a meat-eater that caught fish and other prey with its sharp teeth.1 2

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

175 到 162 百萬年前3

侏羅紀中期

化石發現地

Chongqing, China1 2

長度

4 m (13 ft)1

最高速度

時速約 29 公里（18 英里）

游泳, 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 4 隻狗從鼻子接到尾巴一樣長跟 22 根香蕉頭尾相接一樣長能在 6.2 秒內游完一座大泳池（50 公尺）

Yuzhoupliosaurus 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)

Yuzhoupliosaurus 時速約 29 公里 (18 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

Yuzhoupliosaurus is known only from a lower jaw, eighteen vertebrae, parts of a shoulder girdle, and pieces of the right hindlimb.1

Its neck bones (cervical vertebrae) are described as 'high and short', and the front neck ribs are double-headed while the back ones are single-headed.1

The name Yuzhoupliosaurus comes from Yuzhou, an old name for the city of Chongqing in China, where the first fossil was found.1

Scientists think Yuzhoupliosaurus lived in fresh water, which is unusual for plesiosaurs that mostly lived in the sea.1

It lived during the Middle Jurassic, about 174 to 161 million years ago.2

Yuzhoupliosaurus had long, well-developed collarbones (clavicles) and elongated coracoids (part of the shoulder blade).1

Yuzhoupliosaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Yuzhoupliosaurus 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。

給恐龍專家

學名: Yuzhoupliosaurus
命名者: Zhang 19853
類群: 蛇頸龍類
科 / 演化支: Rhomaleosauridae3
分類: Plesiosauria > Sauropterygia3
岩石的年代: 175 到 162 百萬年 (Aalenian / Callovian)3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Yuzhoupliosaurus was named by Chinese paleontologist Zhang in 1985, based on a partial skeleton found in Chongqing, China.1 2
仍有爭議: Scientists are not sure whether Yuzhoupliosaurus lived in fresh water or salt water, because the fossil was found in rocks that could be from a river or lake.1