恐龍卡第 1200 張，共 2 027 張

Mollesaurus

名字的意思： “lizard from the Los Molles Formation”1

吃：肉魚龍類侏羅紀中期嚴格來說不是恐龍

Mollesaurus was a large, fast-swimming marine reptile that lived in the Jurassic seas. It looked a bit like a dolphin but was actually an ichthyosaur, not a dinosaur. With its big eyes and sharp teeth, it was a top hunter in the ocean.1 3

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

171 到 169 百萬年前3

侏羅紀中期

化石發現地

Neuquén Basin, northwestern Patagonia, Argentina1 2

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)

Mollesaurus 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

Mollesaurus is one of the oldest known ophthalmosaurid ichthyosaurs, living about 171 to 170 million years ago.1

Its name comes from the Los Molles Formation in Argentina, where its fossils were found.1

The only known fossil of Mollesaurus is a partial skeleton including part of the skull and most of the backbone.1

Mollesaurus was a thunnosaur, meaning it had a tuna-like body built for fast swimming.1

Some scientists once thought Mollesaurus was a species of Ophthalmosaurus, but newer studies show it is its own genus.1

Mollesaurus and another ichthyosaur called Chacaicosaurus were found at the same spot in Argentina.1

Mollesaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Mollesaurus 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: Mollesaurus
命名者: Fernandez 19993
類群: 魚龍類
科 / 演化支: Ophthalmosauridae3
分類: Ichthyosauria > Ichthyosauromorpha3
岩石的年代: 171 到 169 百萬年 (Bajocian)3
岩層: Los Molles3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Mollesaurus was named by paleontologist Marta S. Fernández in 1999 based on a partial skeleton found in the Los Molles Formation of Argentina.1 3
仍有爭議: Scientists are not sure exactly how big Mollesaurus grew, because only one partial skeleton has been found.1