恐龍卡第 0183 張，共 2 027 張

Astigmasaura

名字的意思： “stray animal lizard, from the Spanish word 'orejano' meaning an animal without an owner”1

吃：植物長脖子恐龍白堊紀早期

Astigmasaura was a long-necked plant-eater that lived in what is now Patagonia, Argentina. It was a rebbachisaurid sauropod, a group of dinosaurs that were medium to large in size and walked on four legs. Astigmasaura lived alongside giant titanosaurs during the Late Cretaceous.5 1

生存年代

110 到 106 百萬年前5

白堊紀早期

化石發現地

El Orejano locality, Neuquén Province, Patagonia, Argentina5 1

長度

18 m (59 ft)2

體重

10 公噸 (22,000 lb)2

高度

4.1 m (13 ft)

估計值

最高速度

時速約 15 公里（9 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 台汽車一樣重

跟 4 台汽車排成一排一樣長跟 100 根香蕉頭尾相接一樣長跟 1.5 頭大象一樣重跟 2000 顆西瓜一樣重跟 12 整班小學生一樣重跟 22 隻北極熊一樣重能在 24 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Astigmasaura 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)

Astigmasaura 時速約 15 公里 (9 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

Astigmasaura is one of the youngest rebbachisaurid dinosaurs ever found, living near the end of the group's existence.1

Its name comes from the Spanish word 'orejano', which means a stray animal without an owner, because it was found in the El Orejano locality.1

The fossil includes an almost complete pelvis and a series of tail vertebrae, which is rare for rebbachisaurids.1

Astigmasaura had tall neural spines on its front tail vertebrae, which helped attach strong muscles.1

It lived in the same time and place as giant titanosaurs, but was a smaller, more lightly built sauropod.1

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

?How big was Astigmasaura?

It was about 18 metres (59 feet) long and weighed more than 10 tonnes (22,000 pounds).2

?What did Astigmasaura eat?

It was a plant-eater that ate low-growing plants, like ferns and cycads, using its long neck to reach them.3

?When did Astigmasaura live?

It lived about 95 million years ago, during the Late Cretaceous period.2

?Where was Astigmasaura found?

Its fossils were found in the Huincul Formation of Neuquén Province, Argentina, near an oil field called El Orejano.4

給恐龍專家

學名: Astigmasaura
命名者: Bellardini et al. 20255
類群: 長脖子恐龍
科 / 演化支: Rebbachisauridae5
分類: Sauropodomorpha > Sauropoda > Diplodocoidea5
岩石的年代: 110 到 106 百萬年 (Albian)5
岩層: Huincul5
國家: 阿根廷5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Astigmasaura was named in 2025 by Flavio Bellardini and colleagues based on a specimen found in the Huincul Formation of Patagonia, Argentina. The fossil was prepared at the Museo Municipal 'Argentino Urquiza' in Rincón de los Sauces.5 1
仍有爭議: Scientists are still debating exactly how Astigmasaura is related to other rebbachisaurids, and whether it was a more basal or more advanced member of the group.1