恐龍卡第 1125 張，共 2 027 張

Malarguesaurus

名字的意思： “Malargüe lizard, after the Malargüe Department in Mendoza Province, Argentina”1

吃：植物長脖子恐龍白堊紀晚期

Malarguesaurus was a huge, long-necked plant-eater that stomped through what is now Argentina about 90 million years ago. It was a titanosauriform sauropod, meaning it was a cousin of the biggest dinosaurs that ever lived. Its bones were found in the Portezuelo Formation, and it is the second sauropod discovered in Mendoza Province.1 2

生存年代

90 到 86 百萬年前5

白堊紀晚期

化石發現地

Mendoza Province, Argentina1 2

長度

20.4 m (67 ft)4

體重

16 公噸 (35,300 lb)4

高度

4.6 m (15 ft)

估計值

最高速度

時速約 13 公里（8 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 2.5 頭大象一樣重

跟 5 台汽車排成一排一樣長跟 110 根香蕉頭尾相接一樣長跟 11 台汽車一樣重跟 3200 顆西瓜一樣重跟 20 整班小學生一樣重跟 36 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 28 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Malarguesaurus 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)

Malarguesaurus 時速約 13 公里 (8 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

Malarguesaurus is known from tail vertebrae, chevrons, ribs, and limb bones, but no skull has been found.1

Its fossils were found in rocks that are between about 90.5 and 88.5 million years old, from the Turonian to Coniacian stages.1 2

Scientists think Malarguesaurus was a robust, heavy-built sauropod, based on its thick bones.1

It was first described in 2008 by González Riga and colleagues, and the full scientific paper was published in 2009.1 3

Malarguesaurus is closely related to other titanosauriforms like Ligabuesaurus and Phuwiangosaurus, and some studies place it in a group called Somphospondyli.1

The only species in this genus is Malarguesaurus florenciae.1 2

Malarguesaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Malarguesaurus 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: Malarguesaurus
命名者: González Riga et al. 20095
類群: 長脖子恐龍
科 / 演化支: Titanosauria5
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria5
岩石的年代: 90 到 86 百萬年 (Coniacian)5
岩層: Los Bastos5
國家: 阿根廷5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Malarguesaurus was named by paleontologists Bernardo González Riga, Elena Previtera, and Cecilia Pirrone in 2008, based on fossils found in the Portezuelo Formation of Mendoza, Argentina.1 3
仍有爭議: Scientists are not sure exactly where Malarguesaurus fits in the sauropod family tree; some studies place it in Titanosauria, while others put it in Somphospondyli or Macronaria.1 2