恐龍卡第 0207 張，共 2 027 張

Austroposeidon

名字的意思： “Austro means southern, and Poseidon is the Greek god of earthquakes. So the name means Southern Poseidon.”1

吃：植物長脖子恐龍白堊紀晚期

Austroposeidon was a giant, long-necked plant eater from Brazil. It was one of the biggest dinosaurs ever found in that country.1

生存年代

84 到 66 百萬年前3

白堊紀晚期

化石發現地

São Paulo State, southeastern Brazil, in the Presidente Prudente Formation.1

長度

25 m (82 ft)1

高度

5.5 m (18 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

跟 6 台汽車排成一排一樣長跟 140 根香蕉頭尾相接一樣長高到能從 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）

Austroposeidon 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)

Austroposeidon 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

Austroposeidon is the first giant titanosaur found in Brazil. Before it, most giant titanosaurs were known from Argentina.1

Its bones were discovered in 1953 by paleontologist Llewellyn Ivor Price, but scientists did not describe them until 2016.2

The only known fossil is a partial backbone, including neck, back, and hip vertebrae. No skull or leg bones have been found.2

CT scans of its neck bones showed dense growth rings mixed with air spaces. This was the first time such a feature was seen in sauropods.1

The fossil was found in fine sandstone, which suggests it was buried by a flood that spread mud and sand over a floodplain.2

The exact spot where the bones were found is now covered by a city, so scientists cannot dig there anymore.1

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

?How big was Austroposeidon?

About 25 metres (82 feet) long. That makes it the largest dinosaur ever discovered in Brazil.2 1

?What did Austroposeidon eat?

It was a plant eater. As a titanosaur sauropod, it ate plants like ferns and leaves.2

?When did Austroposeidon live?

It lived during the Late Cretaceous period, about 72 to 66 million years ago.2 1

?Is Austroposeidon a dinosaur?

Yes, it is a dinosaur. More specifically, it is a titanosaurian sauropod dinosaur.2

迷思破解王

迷思： Some people think all giant dinosaurs lived in Argentina, but Austroposeidon shows that Brazil also had huge titanosaurs.

真相： Austroposeidon was a giant titanosaur from Brazil, proving that giant sauropods lived across South America.1

給恐龍專家

學名: Austroposeidon
命名者: Bandeira et al. 20163
類群: 長脖子恐龍
科 / 演化支: Lognkosauria3
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)3
岩層: Presidente Prudente3
國家: 巴西3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Llewellyn Ivor Price collected the bones in 1953 near Presidente Prudente city in Brazil. The species was named Austroposeidon magnificus in 2016 by Bandeira and colleagues.2 1
仍有爭議: Scientists are not sure exactly how big Austroposeidon was, because only part of its backbone is known. The 25 meter length is an estimate.1