恐龍卡第 1476 張，共 2 027 張

Proneusticosaurus

名字的意思： “before Neusticosaurus”1

吃：肉海生爬蟲類三疊紀中期嚴格來說不是恐龍

Proneusticosaurus was a marine reptile that swam in warm, shallow seas during the Triassic Period. It had a long neck and tail, and its bones were very dense to help it stay underwater.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

247 到 237 百萬年前4

三疊紀中期

化石發現地

Poland (Upper Silesia) and possibly Germany and the Netherlands4 1

長度

1.3 到 1.4 m (4.3 到 4.6 ft)2 3

最高速度

時速約 13 公里（8 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 3 隻家貓從鼻子接到尾巴一樣長跟 8 根香蕉頭尾相接一樣長能在 14 秒內游完一座大泳池（50 公尺）

Proneusticosaurus 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)

Proneusticosaurus 時速約 13 公里 (8 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

Proneusticosaurus had very dense, heavy bones, especially in its legs and ribs, which helped it sink and swim underwater.2

Scientists counted seven growth rings in its thigh bone, showing it grew slowly and lived for several years.2

Its vertebrae were shaped like barrels, a condition called pachyostosis, which made its spine extra heavy.2

Proneusticosaurus is one of the oldest known eosauropterygians, a group that includes plesiosaurs.2

Only a few fossils of Proneusticosaurus have been found, and many were lost during World War II.2

Proneusticosaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Proneusticosaurus 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: Proneusticosaurus
命名者: Volz 19024
類群: 海生爬蟲類
科 / 演化支: Pistosauroidea4
分類: Sauropterygia4
岩石的年代: 247 到 237 百萬年 ()4
岩層: Wellenkalk, Gogolin4
國家: 波蘭4
化石紀錄: The Paleobiology Database 收錄 16 筆4
發現: Proneusticosaurus was named by German paleontologist Wilhelm Volz in 1902, based on partial skeletons found in Poland.4 2
仍有爭議: Scientists are not sure if Proneusticosaurus is the same animal as Cymatosaurus, which is known only from skulls.2