恐龍卡第 0088 張，共 2 027 張

Amargatitanis

名字的意思： “Amarga giant”1

吃：植物長脖子恐龍白堊紀早期

Amargatitanis was a long-necked plant-eater that lived in what is now Argentina. It was a sauropod, but not one of the biggest, it was about as long as a school bus. Its fossils were found near a place called La Amarga, which means 'the bitter one' in Spanish.1

生存年代

126 到 121 百萬年前3

白堊紀早期

化石發現地

Neuquén Province, Argentina2 1

長度

10 到 12 m (33 到 39 ft)1

體重

3.5 公噸 (7,700 lb)1

高度

2.9 m (9.5 ft)

估計值

最高速度

時速約 21 公里（13 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 台汽車一樣重

跟 2.5 台汽車排成一排一樣長跟 67 根香蕉頭尾相接一樣長跟 180 隻狗一樣重跟 700 顆西瓜一樣重跟 4 整班小學生一樣重跟 8 隻北極熊一樣重能在 17 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Amargatitanis 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)

Amargatitanis 時速約 21 公里 (13 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

Amargatitanis was first thought to be a titanosaur, but later scientists realized it was a dicraeosaurid, a group of sauropods with short necks and tall spines on their vertebrae.1

The only known skeleton of Amargatitanis is incomplete: just a partial hind leg, a hip bone, and two vertebrae. That makes it hard for scientists to know exactly what it looked like.1

Amargatitanis lived about 129 to 123 million years ago, during the Early Cretaceous period.1

The fossils were collected by famous paleontologist José Bonaparte in 1983, but the dinosaur wasn't named until 2007 by Sebastián Apesteguía.1

Amargatitanis shared its home with other sauropods like Amargasaurus and Zapalasaurus. They probably ate different plants to avoid competing for food.1

Like other dicraeosaurids, Amargatitanis had a long tail and strong legs. Its neck was shorter than many other sauropods, so it probably fed at heights up to about 2.7 metres (8.9 feet).1

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

?How big was Amargatitanis?

About 12 metres (39.7 feet) long and weighed around 3.5 metric tons (3.9 short tons), according to one estimate. Another study gave a higher weight of about 11.4 metric tons (12.6 short tons).1

?What did Amargatitanis eat?

It was a plant-eater, or herbivore. It probably ate low-growing plants because its neck was shorter than many other sauropods.1 3

?When did Amargatitanis live?

It lived about 129 to 123 million years ago, during the Early Cretaceous period.1

?Is Amargatitanis a dinosaur?

Yes, it is a dinosaur. It is a type of sauropod called a dicraeosaurid.1 3

給恐龍專家

學名: Amargatitanis
命名者: Apesteguía 20073
類群: 長脖子恐龍
科 / 演化支: Dicraeosauridae3
分類: Sauropodomorpha > Sauropoda > Diplodocoidea3
岩石的年代: 126 到 121 百萬年 (Barremian)3
岩層: La Amarga3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Amargatitanis was named by Argentine paleontologist Sebastián Apesteguía in 2007. The fossils were found in 1983 by a team led by José Bonaparte in the La Amarga Formation of Argentina.1
仍有爭議: Scientists are not sure whether Amargatitanis is a valid genus or a nomen dubium (doubtful name), because the fossils are so few and fragmentary.2