恐龍卡第 0627 張，共 2 027 張

Eromangasaurus

名字的意思： “Eromanga lizard”1

吃：肉蛇頸龍類白堊紀早期嚴格來說不是恐龍

Eromangasaurus was a long-necked marine reptile that swam in the warm seas of ancient Australia. It was not a dinosaur, but a plesiosaur, and it used its sharp teeth to crunch up clams and snails.1 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

106 到 100 百萬年前5

白堊紀早期

化石發現地

Maxwelton, northern Queensland, Australia (Toolebuc Formation)1

長度

7 m (23 ft)1

體重

1 公噸到 2 公噸 (2,200 到 4,400 lb)1

最高速度

時速約 26 公里（16 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 1.5 台汽車一樣重

跟 7 隻狗從鼻子接到尾巴一樣長跟 39 根香蕉頭尾相接一樣長跟 100 隻狗一樣重跟 400 顆西瓜一樣重跟 2.5 整班小學生一樣重跟 4 隻北極熊一樣重能在 6.9 秒內游完一座大泳池（50 公尺）

Eromangasaurus 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)

Eromangasaurus 時速約 26 公里 (16 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

Eromangasaurus lived about 103 million years ago, during the Early Cretaceous period.1

Its name comes from the Eromanga Basin in Australia, where its fossils were found.1

The only known skull of Eromangasaurus is nearly complete but badly crushed.1

Eromangasaurus had seven teeth in its upper jaw, with one tooth right in the middle.3

Scientists once thought Eromangasaurus was a species of Tuarangisaurus, a plesiosaur from New Zealand.1

Eromangasaurus was about 7 metres long and weighed between 1 and 2 tonnes, as big as a small car.1

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

?Was Eromangasaurus a dinosaur?

No, Eromangasaurus was not a dinosaur. It was a plesiosaur, a type of marine reptile that lived in the sea.1

?How big was Eromangasaurus?

Eromangasaurus was about 7 metres long and weighed between 1 and 2 metric tons. That is about as big as a small car.1

?What did Eromangasaurus eat?

Eromangasaurus ate clams and snails, crushing them with its sharp teeth. It also ate fish and squid.1 4

?Where was Eromangasaurus found?

Eromangasaurus fossils were found in Queensland, Australia, in the Eromanga Basin. The skull was discovered near Maxwelton.1 4

迷思破解王

迷思： Eromangasaurus was a dinosaur.

真相： Eromangasaurus was a plesiosaur, a marine reptile that lived in the sea, not a dinosaur.1

給恐龍專家

學名: Eromangasaurus
命名者: Kear 20055
類群: 蛇頸龍類
科 / 演化支: Elasmosauridae5
分類: Plesiosauria > Elasmosauridae > Sauropterygia5
岩石的年代: 106 到 100 百萬年 (Albian)5
岩層: Toolebuc5
國家: 澳洲5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Eromangasaurus was named by Benjamin P. Kear in 2005 based on a skull found in the Toolebuc Formation of Queensland, Australia. The same fossil was also named Tuarangisaurus australis by Sven Sachs earlier that year, but Eromangasaurus is now the accepted name.1 2
仍有爭議: Scientists are not sure exactly how Eromangasaurus is related to other elasmosaurids, such as Terminonatator from Canada.3