恐龍卡第 0571 張，共 2 027 張

Elaltitan

名字的意思： “Elal's giant, after the Tehuelche god Elal and the Greek word for giant”1

吃：植物長脖子恐龍白堊紀晚期

Elaltitan was a giant, long-necked plant-eater that lived in what is now Argentina. It was one of the biggest dinosaurs ever, as heavy as a herd of elephants!1

生存年代

90 到 86 百萬年前3

白堊紀晚期

化石發現地

Chubut Province, Argentina1

長度

20 m (66 ft)1

體重

23 公噸到 42.8 公噸 (50,700 到 94,400 lb)1

高度

4.5 m (15 ft)

估計值

最高速度

時速約 10 公里（6 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 7 頭大象一樣重

跟 4 台汽車排成一排一樣長跟 110 根香蕉頭尾相接一樣長跟 8600 顆西瓜一樣重跟 54 整班小學生一樣重跟 95 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 36 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Elaltitan 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)

Elaltitan 時速約 10 公里 (6 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

Elaltitan is the first titanosaur skeleton ever found with a preserved calcaneum, a bone in the ankle.1

Its fossils were originally thought to belong to another dinosaur, Antarctosaurus, before scientists realized it was a new species.1

Elaltitan lived about 96 to 89 million years ago, during the Late Cretaceous period.1

The complete femur (thigh bone) of Elaltitan would have been about 2.3 meters (7.5 feet) long, as tall as a person.1

Scientists estimate Elaltitan weighed between 23 and 43 tonnes, making it one of the heaviest dinosaurs known.1

The name Elaltitan honors the Tehuelche people's god Elal, from the region where the fossils were found.1

Elaltitan 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Elaltitan 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: Elaltitan
命名者: Mannion and Otero 20123
類群: 長脖子恐龍
科 / 演化支: Lithostrotia3
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
岩石的年代: 90 到 86 百萬年 (Coniacian)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: Elaltitan was named in 2012 by Philip Mannion and Alejandro Otero. The fossils were collected by an expedition led by José Bonaparte from the Bajo Barreal Formation in Argentina.1
仍有爭議: Scientists are not sure exactly where Elaltitan fits in the titanosaur family tree. More fossils might help solve this puzzle.2