恐龍卡第 0167 張，共 2 027 張

Argyrosaurus

名字的意思： “silver lizard”1

吃：植物長脖子恐龍白堊紀晚期

Argyrosaurus was a huge, long-necked plant-eater that lived in what is now Argentina. It was a titanosaur, a group of sauropods known for their enormous size. This dinosaur is known from a single left forelimb, but that arm was already huge!1 3

生存年代

84 到 66 百萬年前3

白堊紀晚期

化石發現地

Chubut Province, Argentina1 3

長度

17 到 28 m (56 到 92 ft)1

體重

12 公噸到 50.8 公噸 (26,500 到 112,000 lb)1

高度

6 m (20 ft)

估計值

最高速度

時速約 11 公里（7 英里）

跑步, 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？

牠有多高？

估計值

牠有多重？

跟 8 頭大象一樣重

跟 6 台汽車排成一排一樣長跟 160 根香蕉頭尾相接一樣長跟 10000 顆西瓜一樣重跟 64 整班小學生一樣重跟 110 隻北極熊一樣重高到能從 3 樓的窗戶往裡看能在 33 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Argyrosaurus 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)

Argyrosaurus 時速約 11 公里 (7 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 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

The only sure fossil of Argyrosaurus is a huge left forelimb, including the upper arm bone, two lower arm bones, and all five hand bones.1

When the forelimb was found, the rest of the skeleton was there too, but it was completely destroyed during digging.1

Many other fossils were later thought to belong to Argyrosaurus, but scientists now think most of them are from different titanosaurs.1

One of those misidentified fossils was even given its own new name: Elaltitan lilloi.2

Argyrosaurus lived about 70 million years ago, near the very end of the Age of Dinosaurs.1

The name Argyrosaurus means 'silver lizard' because it was found in Argentina, which means 'silver land'.1

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

?How big was Argyrosaurus?

Estimates vary a lot. One estimate says about 17 metres long and 12 tonnes, while another says up to 28 metres and about 43.5 to 50.8 tonnes. A more recent estimate is 21 metres and 26 tonnes.1

?What did Argyrosaurus eat?

It was a plant-eater, like other sauropods. Its teeth and jaws are not known, but its relatives were herbivores, so it likely ate ferns, conifers, and other plants.1

?When did Argyrosaurus live?

It lived about 70 million years ago, during the Late Cretaceous Period, near the very end of the Age of Dinosaurs.1

?Why is Argyrosaurus called 'silver lizard'?

The name means 'silver lizard' because it was found in Argentina, which literally means 'silver land'.1

迷思破解王

迷思： Many fossils from Argentina and Uruguay were once called Argyrosaurus.

真相： Scientists now think only the original forelimb definitely belongs to Argyrosaurus. The other fossils are probably different dinosaurs.1

給恐龍專家

學名: Argyrosaurus
命名者: Lydekker 18933
類群: 長脖子恐龍
科 / 演化支: Titanosauria3
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)3
岩層: Lago Colhué Huapi3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Argyrosaurus was named by Richard Lydekker in 1893, based on a huge left forelimb found in Chubut Province, Argentina.1 3
仍有爭議: Scientists are not sure exactly how Argyrosaurus is related to other titanosaurs. It might have had wrist bones, which most titanosaurs lacked, suggesting it was a more primitive member of the group.2