恐龍卡第 0118 張，共 2 027 張

Anningasaura

名字的意思： “Anning's lizard”1

吃：肉蛇頸龍類侏羅紀早期嚴格來說不是恐龍

Anningasaura was an early plesiosaur, a marine reptile that swam in the Jurassic seas. It had a long neck, a small head, and flippers like paddles. This creature lived about 200 million years ago, when dinosaurs roamed the land.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

201 到 184 百萬年前3

侏羅紀早期

化石發現地

Lyme Regis, Dorset, United Kingdom1 3

長度

2 到 3 m (6.6 到 9.8 ft)1

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

牠有多大？

牠有多長？

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長能在 6.7 秒內游完一座大泳池（50 公尺）

Anningasaura 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)

Anningasaura 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

Anningasaura is known from only one fossil, a skull and some neck bones from a young plesiosaur.1

The name Anningasaura honors Mary Anning, a famous fossil hunter who discovered many Jurassic marine reptiles in England.1

This plesiosaur had special features in its skull, like a thick platform on its upper jaw and extra holes in its skull bones.1

Anningasaura lived during the Early Jurassic, between 201 and 184 million years ago.3

Scientists think Anningasaura was a very early plesiosaur, not as advanced as later ones like Plesiosaurus.1

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

?Was Anningasaura a dinosaur?

No, Anningasaura was a plesiosaur, a marine reptile that lived in the sea, not a dinosaur.1

?How big was Anningasaura?

Nobody knows for sure because only a skull and neck bones from a young plesiosaur have been found, so its full size is unknown.1

?What did Anningasaura eat?

Scientists do not know exactly, but as a plesiosaur it likely ate fish and other small sea creatures.1

?When did Anningasaura live?

Anningasaura lived during the Early Jurassic, about 201 to 199 million years ago.1

給恐龍專家

學名: Anningasaura
命名者: Vincent and Benson 20123
類群: 蛇頸龍類
科 / 演化支: Rhomaleosauridae3
分類: Plesiosauria > Sauropterygia3
岩石的年代: 201 到 184 百萬年 (Hettangian / Pliensbachian)3
國家: 英國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Anningasaura was named in 2012 by paleontologists Peggy Vincent and Roger Benson. The only fossil was found in Lyme Regis, England, and was first thought to be a different plesiosaur called 'Plesiosaurus' macrocephalus.1 2
仍有爭議: Scientists are still debating exactly where Anningasaura fits on the plesiosaur family tree, because it has a mix of ancient and unique features.1