恐龍卡第 0856 張，共 2 027 張

Ichthyosaurus

名字的意思： “fish lizard”1

吃：肉魚龍類三疊紀晚期到白堊紀早期嚴格來說不是恐龍

Ichthyosaurus was a fast-swimming marine reptile that looked like a dolphin but was not a dinosaur. It lived in the oceans during the time of the dinosaurs and hunted fish and squid with its long, toothy snout.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

227 到 100 百萬年前5

三疊紀晚期到白堊紀早期

化石發現地

England, Germany, France, Belgium, Chile, and the United States5

長度

2 到 3.5 m (6.6 到 11 ft)1

體重

80 kg 到 200 kg (176 到 441 lb)1

最高速度

時速約 46 公里（29 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？

牠有多重？

跟 10 隻狗一樣重

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跟 40 顆西瓜一樣重跟 11 個幼兒園小朋友一樣重跟 6 個小學生一樣重能在 3.9 秒內游完一座大泳池（50 公尺）

Ichthyosaurus 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)

Ichthyosaurus 時速約 46 公里 (29 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

Ichthyosaurus could not suck in its prey like some fish. It had to bite and grab food with its teeth.1

It was a pursuit predator, meaning it chased after its food by swimming very fast.1

Ichthyosaurus gave birth to live young, not eggs, because it lived entirely in the water.2

Its eyes were large and it relied on sight to hunt, possibly also using its sense of smell.1

Fossils of Ichthyosaurus have been found in rocks that are between 227 and 100 million years old.5

The name Ichthyosaurus means 'fish lizard', but it was a reptile, not a fish.1

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

?How big was Ichthyosaurus?

It was smaller than many other ichthyosaurs. The largest species, I. somersetensis, reached about 3 to 3.3 metres (9.8 to 10.8 feet) long, while other species like I. communis were only about 2 metres (6.6 feet) long.1

?What did Ichthyosaurus eat?

It ate fish and squid-like animals called cephalopods, especially belemnites. It was a fast swimmer that chased and grabbed its food with its teeth.1

?Did Ichthyosaurus lay eggs?

No, it gave birth to live babies in the water. Fossils show pregnant females with tiny Ichthyosaurus inside them, so they never came onto land to lay eggs.1

?Was Ichthyosaurus a dinosaur?

No, it was a marine reptile called an ichthyosaur, not a dinosaur. Dinosaurs lived on land, while Ichthyosaurus lived in the ocean.3

?How fast could Ichthyosaurus swim?

Probably up to about 46 km/h (29 mph), as fast as a car driving in town! This is an estimate from its size. It swam like a tuna, with a strong tail, and could swim very quickly to chase prey.1

?When did Ichthyosaurus live?

It lived during the Early Jurassic Period, about 201 to 174 million years ago. Fossils have been found in Europe, especially in England, Germany, and Portugal.1

?Could Ichthyosaurus breathe underwater?

No, it breathed air like a dolphin or whale. It had to come to the surface to breathe, even though it lived its whole life in the ocean.4

?Why did Ichthyosaurus have big eyes?

It had large eyes to help it see well while hunting. It relied mostly on its sense of sight, possibly along with smell, to find fish and squid.1

迷思破解王

迷思： Ichthyosaurus was a dinosaur.

真相： Ichthyosaurus was a marine reptile, not a dinosaur. Dinosaurs lived on land, while ichthyosaurs swam in the sea.1

給恐龍專家

學名: Ichthyosaurus
命名者: Koenig 18185
類群: 魚龍類
科 / 演化支: Ichthyosauridae5
分類: Ichthyosauria > Ichthyosauromorpha5
岩石的年代: 227 到 100 百萬年 (Norian / Albian)5
岩層: Blue Lias, White Lias, Alum Shale5
國家: 英國, 法國, 智利, 美國, 德國, 比利時5
化石紀錄: The Paleobiology Database 收錄 101 筆5
又名: Eurypterygius, Gryphus （舊名稱現在也算作同一種動物）5
發現: Ichthyosaurus was named by the scientist Charles Koenig in 1818, based on fossils found in England.5
仍有爭議: Scientists still debate exactly how many species of Ichthyosaurus existed, because many fossils are incomplete.2