恐龍卡第 1095 張，共 2 027 張

Luopingosaurus

名字的意思： “Luoping lizard”1

吃：魚海生爬蟲類三疊紀中期嚴格來說不是恐龍

Luopingosaurus was a small marine reptile that swam in the seas of China about 244 million years ago. It had a long snout and used suction to catch its food. It was not a dinosaur, but a relative of plesiosaurs.2 1

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

244 到 243 百萬年前3

三疊紀中期

化石發現地

Luoping County, Yunnan Province, China1 2

長度

0.64 m (2.1 ft)2

最高速度

時速約 5 公里（3 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 根香蕉頭尾相接一樣長能在 36 秒內游完一座大泳池（50 公尺）

Luopingosaurus 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)

Luopingosaurus 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 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

Luopingosaurus had a very long snout, making up 55% of its skull length. This was unusual for its family, which usually had short snouts.2

It had extra finger bones, a condition called hyperphalangy. Its fingers had the formula 2 to 3-5 to 5-3, and its toes had 2 to 3-4 to 6-4.2

Luopingosaurus had 21 neck vertebrae and 27 back vertebrae, which is more than other pachypleurosaurids.2

It had rod-like hyoid bones in its throat. These bones helped create suction to pull prey into its mouth.2

Luopingosaurus lived about 244 million years ago, during the Middle Triassic period. This was about 8 million years after the great end-Permian mass extinction.2

The only known fossil is a nearly complete skeleton, missing only the tip of the tail. It was found in a slab of limestone.2 1

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

迷思破解王

迷思： Luopingosaurus was a dinosaur.

真相： Luopingosaurus was a marine reptile called a pachypleurosaurid, part of the group Sauropterygia. It was not a dinosaur.1 3

給恐龍專家

學名: Luopingosaurus
命名者: Xu et al. 20233
類群: 海生爬蟲類
科 / 演化支: Pachypleurosauridae3
分類: Sauropterygia3
岩石的年代: 244 到 243 百萬年 ()3
岩層: Guanling3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The fossil was found in Luoping County, Yunnan, China, in rocks of the Guanling Formation. It was named by Xu and colleagues in 2023.1 3
仍有爭議: Scientists are still debating how Luopingosaurus and other pachypleurosaurids are related to each other and to other marine reptiles. The exact family tree is not fully agreed upon.2