恐龍卡第 1334 張，共 2 027 張

Overosaurus

名字的意思： “Overo lizard, after the Cerro Overo locality where it was found”1

吃：植物長脖子恐龍白堊紀晚期

Overosaurus was a small, long-necked plant-eater that lived in what is now Patagonia, Argentina. It was a titanosaur, a group of giant sauropods, but it was much smaller than its relatives. This dinosaur walked on four sturdy legs and used its long neck to reach leaves high in the trees.1 2

生存年代

86 到 84 百萬年前3

白堊紀晚期

化石發現地

Cerro Overo locality, Patagonia, Argentina1 3

長度

最多 10 m (33 ft)1

高度

2.5 m (8.2 ft)

估計值

最高速度

時速約 23 公里（14 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 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Overosaurus 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)

Overosaurus 時速約 23 公里 (14 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

Overosaurus is known from a single, nearly complete backbone from the neck to the tail, including ribs and hip bones.1 2

It lived about 86 to 84 million years ago, during the Santonian stage of the Late Cretaceous.1 3

Overosaurus was small for a titanosaur, only about 10 metres (33 feet) long, while many other titanosaurs were over 30 metres long.1

Its hip bone (ilium) was unusually short from front to back and tall from top to bottom compared to other titanosaurs.2

The front part of its hip bone was bent strongly outward and ended in a point that slanted downward and outward.2

Overosaurus had six fused sacral vertebrae in its hip, which helped support its weight.1

The fossil was found by Carlos Parada and his family, who helped the scientists during fieldwork.1

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

?How big was Overosaurus?

It was about 10 metres (33 feet) long, which is small for a titanosaur.1

?What did Overosaurus eat?

It was a plant-eater (herbivore) that used its long neck to reach leaves high in trees.1

?When did Overosaurus live?

It lived about 86 to 84 million years ago, during the Santonian stage of the Late Cretaceous.1

給恐龍專家

學名: Overosaurus
命名者: Coria et al. 20133
類群: 長脖子恐龍
科 / 演化支: Rinconsauria3
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
岩石的年代: 86 到 84 百萬年 (Santonian)3
岩層: Bajo de la Carpa3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Overosaurus was named in 2013 by Rodolfo Coria and his team. The only fossil was found in 2002 at Cerro Overo in Argentina by Carlos Parada and his family, who helped the researchers.1 2
仍有爭議: Scientists are not sure exactly how Overosaurus is related to other titanosaurs, though it is thought to be part of a group called Aeolosaurini.1 2