恐龍卡第 1234 張，共 2 027 張

Nannopterygius

名字的意思： “small wing or flipper”1

吃：肉魚龍類侏羅紀晚期到白堊紀早期嚴格來說不是恐龍

Nannopterygius was a small, fast-swimming marine reptile that lived in the Jurassic seas. It had tiny flippers and a long, streamlined body like a torpedo. It used its big eyes to spot fish and squid in the dim water.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

155 到 143 百萬年前2

侏羅紀晚期到白堊紀早期

化石發現地

England, Kazakhstan, Russia, and Norway1

長度

最多 3.5 m (11 ft)1

最高速度

時速約 48 公里（30 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 19 根香蕉頭尾相接一樣長能在 3.8 秒內游完一座大泳池（50 公尺）

Nannopterygius 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)

Nannopterygius 時速約 48 公里 (30 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

Nannopterygius had very small flippers, only 25 to 30 centimeters (10 to 12 inches) long for the front ones and 10 to 15 centimeters (4 to 6 inches) for the back ones.1

Its name means 'small wing' in Greek, because its flippers were so tiny compared to other ichthyosaurs.1

It had a long tail that made up about 1 meter (3.3 feet) of its total length, with a deeply forked fin.1

Nannopterygius had at least 60 disc-shaped vertebrae, making its body flexible and agile.1

Its eyes were large and had a bony ring inside the socket, which helped it see in dark water.1

Because its flippers were so small, Nannopterygius was not good at long-distance swimming but could sprint quickly over short distances.1

The first fossil of Nannopterygius was found in Kimmeridge Bay, Dorset, England, and was named Ichthyosaurus enthekiodon in 1871.1

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

?How big was Nannopterygius?

It was small for an ichthyosaur, measuring up to 3.5 metres (11 feet) long.1

?What did Nannopterygius eat?

It probably ate fish and squid. It was likely an ambush predator that quickly plunged into shoals of fish in shallow seas.1

?Is Nannopterygius a dinosaur?

No, it is not a dinosaur. It is an extinct marine reptile called an ichthyosaur.1

給恐龍專家

學名: Nannopterygius
命名者: Huene 19232
類群: 魚龍類
科 / 演化支: Ophthalmosauridae2
分類: Ichthyosauria > Ichthyosauromorpha2
岩石的年代: 155 到 143 百萬年 (Kimmeridgian / Tithonian)2
岩層: Kimmeridge Clay2
國家: 俄羅斯, 英國2
化石紀錄: The Paleobiology Database 收錄 3 筆2
發現: The first Nannopterygius fossil was found in Kimmeridge Bay, Dorset, England, and described by J. W. Hulke in 1871 as Ichthyosaurus enthekiodon. In 1922, Friedrich von Huene gave it its own genus name Nannopterygius because of its small flippers.1