恐龍卡第 0044 張，共 2 027 張

Agustinia

名字的意思： “named after Agustin Martinelli, the student who found the skeleton”1

吃：植物長脖子恐龍白堊紀早期

Agustinia was a long-necked, plant-eating dinosaur that lived about 116 to 108 million years ago. It walked on four legs and had a very long tail and neck. Only a few bones of this dinosaur have been found, so scientists are still learning about it.1

生存年代

113 到 100 百萬年前2

白堊紀早期

化石發現地

Neuquén Province, Argentina1

長度

最多 15 m (49 ft)1

高度

3.5 m (11 ft)

估計值

最高速度

時速約 16 公里（10 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 3 台汽車排成一排一樣長跟 83 根香蕉頭尾相接一樣長能在 22 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Agustinia 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)

Agustinia 時速約 16 公里 (10 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

Agustinia was once thought to have bony armor plates on its back, like a stegosaurus. But later scientists showed those 'plates' were actually broken rib and hip bones.1

The only known Agustinia skeleton was discovered in 1997 by a student named Agustin Martinelli, who was part of a museum expedition.1

Agustinia's lower leg bone (fibula) is about 89.5 centimetres (35.2 inches) long. That helped scientists guess the whole dinosaur was about 15 metres (49 feet) long.1

Agustinia lived alongside other sauropods like Comahuesaurus and Ligabuesaurus in the same area of Argentina.1

Scientists have argued about where Agustinia belongs on the dinosaur family tree. Some say it is a rebbachisaurid, a type of diplodocoid sauropod, while others think it might be a titanosaur.1

Because the fossils are so broken and few, some researchers have called Agustinia a 'nomen dubium' (doubtful name). But a 2022 study found enough unique features in its back bones to keep it as a valid genus.1

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

?How big was Agustinia?

Agustinia may have been about 15 metres (49 feet) long, based on comparing its lower leg bone to related dinosaurs. That is just an estimate because only a few bones are known.1

?What did Agustinia eat?

Agustinia was a plant-eating dinosaur, so it ate plants. It lived on land in what is now Argentina.2

?Did Agustinia have armor plates?

Scientists first thought Agustinia had armor plates on its back, but later studies showed those 'plates' were actually broken rib and hip bones. So it probably did not have armor.1

?When did Agustinia live?

Agustinia lived about 116 to 108 million years ago, during the Early Cretaceous Period.1

迷思破解王

迷思： Agustinia had spiky armor plates running down its back.

真相： The supposed armor plates are actually fragments of ribs and hip bones, not true osteoderms.1

給恐龍專家

學名: Agustinia
命名者: Bonaparte 19992
類群: 長脖子恐龍
科 / 演化支: Rebbachisauridae2
分類: Sauropodomorpha > Sauropoda > Diplodocoidea2
岩石的年代: 113 到 100 百萬年 (Albian)2
岩層: Lohan Cura2
國家: 阿根廷2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: The only Agustinia skeleton was found in 1997 by student Agustin Martinelli during a museum expedition near Picún Leufú, Argentina. It was named by paleontologist Jose Bonaparte in 1999.1
仍有爭議: Scientists still debate whether Agustinia was a rebbachisaurid (a type of diplodocoid) or a titanosaur, because its bones are so fragmentary.1