恐龍卡第 1099 張，共 2 027 張

Lusonectes

名字的意思： “Portuguese swimmer”1

吃：肉蛇頸龍類侏羅紀早期嚴格來說不是恐龍

Lusonectes was a marine reptile that swam in the warm Jurassic seas near what is now Portugal. It had a long snout and sharp teeth to catch fish and other slippery prey.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

184 到 175 百萬年前3

侏羅紀早期

化石發現地

Near Alhadas, District of Coimbra, Portugal2

最高速度

時速約 27 公里（17 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)

Lusonectes 時速約 27 公里 (17 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

Lusonectes is the only plesiosaur from Portugal that scientists can identify as a distinct species.1

Its name comes from Latin and Greek words meaning 'Portuguese swimmer'.1

The only fossil found is a partial skull, which is about 127 millimeters (5 inches) long.1

Lusonectes lived about 184 to 175 million years ago, during the Early Jurassic period.3

It was first described in 1897 by French paleontologist Henri Émile Sauvage, who thought it was a Plesiosaurus.2

Lusonectes is one of the few plesiosaurs from the Early Jurassic found outside the United Kingdom and Germany.2

Lusonectes 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Lusonectes 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: Lusonectes
命名者: Smith et al. 20123
類群: 蛇頸龍類
科 / 演化支: Plesiosauridae3
分類: Plesiosauria > Sauropterygia3
岩石的年代: 184 到 175 百萬年 (Toarcian)3
岩層: São Gião3
國家: 葡萄牙3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The fossil was first described in 1897 by French paleontologist Henri Émile Sauvage, who called it Plesiosaurus sp. In 2012, scientists Smith, Araújo, and Mateus gave it the new name Lusonectes sauvagei.2
仍有爭議: Scientists are not sure whether Lusonectes was an early pliosaurid or a plesiosauroid, because the only fossil is a poorly preserved partial skull.2