恐龍卡第 1136 張，共 2 027 張

Maraapunisaurus

名字的意思： “huge reptile”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Maraapunisaurus was a giant, long-necked plant-eater that lived in what is now Colorado, USA. It is known from just one huge backbone bone that was lost long ago, so scientists have to study old drawings to figure out how big it really was.1 2

生存年代

149 到 143 百萬年前3

侏羅紀晚期到白堊紀早期

化石發現地

Garden Park, north of Cañon City, Colorado, USA1

長度

30.3 到 32 m (99 到 105 ft)2 1

體重

70 公噸到 120 公噸 (154,300 到 264,600 lb)1 2

高度

7.95 m (26 ft)1

最高速度

時速約 7 公里（4 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？

牠有多重？

跟 20 頭大象一樣重

跟 7 台汽車排成一排一樣長跟 180 根香蕉頭尾相接一樣長跟 24000 顆西瓜一樣重比長頸鹿還高跟 150 整班小學生一樣重高到能從 3 樓的窗戶往裡看能在 51 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Maraapunisaurus 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)

Maraapunisaurus 時速約 7 公里 (4 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

Maraapunisaurus is only known from a single fossil bone, a huge backbone spine that was 1.5 meters (4.9 feet) tall when found.1 2

The original fossil was lost after being studied in the 1870s, so all we have are old drawings and notes.1

Scientists used to think Maraapunisaurus was the longest dinosaur ever, at 58 meters (190 feet), but newer studies say it was about 30 to 32 meters (98 to 105 feet) long.1 2

It belongs to a group called rebbachisaurids, which are relatives of Diplodocus with strange, air-filled bones in their spines.1 2

The name Maraapunisaurus comes from the Southern Ute word 'maraapuni' meaning 'huge', because of its enormous size.1

Maraapunisaurus lived in a savanna-like environment with ferns and some tall trees along rivers, which it used for shade.1

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

?Was Maraapunisaurus the biggest dinosaur ever?

Some scientists used to think so, but newer estimates say it was about 35 to 40 metres long, making it one of the longest known vertebrates ever, though its exact size compared to others like Supersaurus is uncertain.1

?How long was Maraapunisaurus?

Estimates vary: the largest guess was 58 metres, but most modern studies say 30 to 40 metres.1 2

?How much did Maraapunisaurus weigh?

Scientists estimate its mass at 70 to 120 tonnes.1

?What did Maraapunisaurus eat?

It was a plant-eater that probably ate ferns and other low plants in a savanna-like environment, with some tall trees along rivers for shade.1

?When did Maraapunisaurus live?

It lived during the Late Jurassic period, about 150 million years ago.1

?Where was Maraapunisaurus found?

Its only known fossil was discovered in Garden Park, near Cañon City, Colorado, USA.1

?Why is Maraapunisaurus only known from one bone?

The single backbone bone was lost after being studied in the 1870s, so scientists now rely on old drawings and notes.1

?Is Maraapunisaurus a dinosaur?

Yes, it is a sauropod dinosaur, a long-necked plant-eater from the group called rebbachisaurids.1

迷思破解王

迷思： Many people think Maraapunisaurus was the biggest dinosaur ever, longer than a blue whale.

真相： Newer research shows it was about 30 to 32 meters long, still huge but not the biggest. The old huge size estimate was based on a mistaken classification as a diplodocid.1 2

給恐龍專家

學名: Maraapunisaurus
命名者: Carpenter 20183
類群: 長脖子恐龍
科 / 演化支: Rebbachisauridae3
分類: Sauropodomorpha > Sauropoda > Diplodocoidea3
岩石的年代: 149 到 143 百萬年 (Tithonian)3
岩層: Morrison3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The only fossil was found in 1877 by Oramel Lucas near Cañon City, Colorado, and sent to paleontologist Edward Drinker Cope. Cope named it Amphicoelias fragillimus in 1878. In 2018, Kenneth Carpenter renamed it Maraapunisaurus after realizing it was a different kind of dinosaur.1 2
仍有爭議: Scientists are still not sure exactly how big Maraapunisaurus was because the only fossil is lost and the drawings may not be perfectly accurate.1