恐龍卡第 1418 張，共 2 027 張

Phantomosaurus

名字的意思： “phantom lizard”1

吃：肉魚龍類三疊紀中期嚴格來說不是恐龍

Phantomosaurus was a marine reptile that swam in the seas during the Triassic Period. It had a long tail and flippers to glide through the water like a sea monster.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

247 到 241 百萬年前3

三疊紀中期

化石發現地

Karlstadt, southern Germany3 1

長度

6 m (20 ft)1

最高速度

時速約 43 公里（27 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 6 隻狗從鼻子接到尾巴一樣長跟 33 根香蕉頭尾相接一樣長能在 4.2 秒內游完一座大泳池（50 公尺）

Phantomosaurus 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)

Phantomosaurus 時速約 43 公里 (27 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

Phantomosaurus is known from a partial skull, lower jaw, vertebrae, ribs, and a hind fin.1

Its lower jaw is about 40 cm long and full of sharp, cone-shaped teeth for catching fish.1

The hind fin was very long and slender, with a long femur, tibia and fibula, which helped it generate lift in the water.1

The vertebrae have two hollows on each centrum, possibly to help the animal float more easily.1

Its braincase is very primitive and looks more like early reptiles such as Youngina than other ichthyosaurs.1

Scientists first thought Phantomosaurus was a species of Shastasaurus, but later studies gave it its own genus.1

Phantomosaurus lived about 247 to 241 million years ago, during the Middle Triassic.3

Phantomosaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Phantomosaurus 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: Phantomosaurus
命名者: Maisch and Matzke 20003
類群: 魚龍類
科 / 演化支: Cymbospondylidae3
分類: Ichthyosauria > Ichthyosauromorpha3
岩石的年代: 247 到 241 百萬年 ()3
國家: 德國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The fossils were found in 1965 in southern Germany. In 1997, Sander named it as a species of Shastasaurus, but in 2000 Maisch and Matzke gave it its own genus, Phantomosaurus.1
仍有爭議: Scientists still debate whether classifying ichthyosaurs based on braincase structure is accurate, because few complete braincases of early ichthyosaurs have been found.1