恐龍卡第 0926 張，共 2 027 張

Jobaria

名字的意思： “Named after Jobar, a mythical giant beast from local Tuareg legends”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Jobaria was a huge, long-necked plant eater that stomped through the Sahara Desert millions of years ago. It was one of the most complete sauropod skeletons ever found, so scientists know a lot about it!1

生存年代

162 到 143 百萬年前5

侏羅紀晚期到白堊紀早期

化石發現地

Niger, in the Sahara Desert, specifically in the Tiourarén Formation1 5

長度

16 到 21 m (52 到 69 ft)1 2

體重

16 公噸到 22.4 公噸 (35,300 到 49,400 lb)1

高度

4.57 m (15 ft)3 4

最高速度

時速約 12 公里（7 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 4 頭大象一樣重

跟 5 台汽車排成一排一樣長跟 120 根香蕉頭尾相接一樣長跟 15 台汽車一樣重跟 4500 顆西瓜一樣重跟 28 整班小學生一樣重跟 50 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 30 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Jobaria 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)

Jobaria 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

Jobaria is one of the most complete sauropods ever found, with over 95% of its skeleton preserved.1

Its backbone and tail were simpler than those of later sauropods like Diplodocus, which had complex vertebrae and a whiplash tail.1

Scientists think Jobaria could rear up on its hind legs, like elephants can, because its weight was supported more by its back legs.1

Jobaria lived during the Middle Jurassic, about 167 to 161 million years ago, though some sources say Early Cretaceous.1 2

The name Jobaria comes from a mythical giant beast called Jobar, whose bones some Tuareg people thought the fossils were.1

Jobaria was discovered in 1997 during a four-month expedition led by paleontologist Paul Sereno.1

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

?How big was Jobaria?

About 18.2 metres (60 feet) long and weighing around 22.4 tonnes (24.7 short tons), though some scientists give a smaller estimate of 16 metres (52 feet) and 16 tonnes (18 short tons).1

?What did Jobaria eat?

It was a plant eater, or herbivore, chomping on leaves and other vegetation.2

?Could Jobaria rear up on its hind legs?

Yes, scientists think it could, like elephants do, because its weight was supported more by its back legs.1

?When did Jobaria live?

It lived during the Middle Jurassic Period, about 167 to 161 million years ago, though some older sources say Early Cretaceous.1

?Where was Jobaria found?

In the Sahara Desert of Niger, Africa, discovered in 1997 by a team led by paleontologist Paul Sereno.1 3

?Is Jobaria a dinosaur?

Yes, it is a sauropod dinosaur, a long-necked plant eater.1 2

迷思破解王

迷思： Some people think Jobaria lived during the Early Cretaceous, about 132 million years ago.

真相： Scientists now think the rocks where it was found are actually Middle Jurassic, about 167 to 161 million years old.1

給恐龍專家

學名: Jobaria
命名者: Sereno et al. 19995
類群: 長脖子恐龍
科 / 演化支: Eusauropoda5
分類: Sauropodomorpha > Sauropoda5
岩石的年代: 162 到 143 百萬年 (Oxfordian / Tithonian)5
岩層: Tiourarén5
國家: 尼日5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Jobaria was discovered in 1997 by a team led by Paul Sereno, during an expedition in the Sahara Desert. It was found in a mass-death site in Niger, and the species was named Jobaria tiguidensis in 1999.1 5
仍有爭議: Scientists are still debating exactly where Jobaria fits in the sauropod family tree. Some think it is a basal macronarian, while others think it is a non-neosauropod eusauropod.1