恐龍卡第 0127 張，共 2 027 張

Antetonitrus

名字的意思： “before thunder”1

吃：植物長脖子恐龍侏羅紀早期

Antetonitrus was an early, long-necked plant-eater that lived in what is now South Africa. It walked on all fours and was one of the first giant sauropods, but it could still grab things with its hands.1

生存年代

201 到 193 百萬年前6

侏羅紀早期

化石發現地

Free State, South Africa1 2

長度

8 到 10 m (26 到 33 ft)1

體重

5.6 公噸 (12,300 lb)1

高度

1.5 到 2 m (4.9 到 6.6 ft)1

最高速度

時速約 18 公里（11 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 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1100 顆西瓜一樣重跟 7 整班小學生一樣重跟 12 隻北極熊一樣重能在 20 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Antetonitrus 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)

Antetonitrus 時速約 18 公里 (11 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

Antetonitrus lived about 201 to 193 million years ago, during the Early Jurassic.2

Its name means 'before thunder' because it lived before the famous sauropod Brontosaurus, whose name means 'thunder lizard'.1

Unlike later sauropods, Antetonitrus had a flexible thumb that could grasp, not just support weight.1

Its fossils were first found in 1981 and were originally thought to belong to another dinosaur called Euskelosaurus.1

Antetonitrus was about 8 to 10 metres long and weighed as much as a large elephant.1

Its thigh bone was slightly S-shaped when viewed from the side, unlike the straight thigh bones of later sauropods.1

Antetonitrus is one of the oldest known sauropods, tied with other early sauropods from the same formation in South Africa.1

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

?How big was Antetonitrus?

Antetonitrus was about 8 to 10 metres (26 to 33 feet) long, stood 1.5 to 2 metres (5 to 6.5 feet) tall at the hip, and weighed around 5.6 metric tons (6.2 short tons). It may not have been fully grown yet.3 4

?Could Antetonitrus grab things with its hands?

Yes. Unlike later sauropods, Antetonitrus had a flexible thumb that could grasp, not just support weight. Its wrist bones were not locked into a permanent weight-supporting position.3 5

?Was Antetonitrus a dinosaur?

Yes, Antetonitrus was a dinosaur. It was a basal sauropod, a type of long-necked, plant-eating dinosaur that walked on all fours.3 6

?When did Antetonitrus live?

Antetonitrus lived during the Early Jurassic, about 201 to 193 million years ago. It is one of the oldest known sauropods, tied with other early sauropods from the same formation in South Africa.3 4

給恐龍專家

學名: Antetonitrus
命名者: Yates and Kitching 20036
類群: 長脖子恐龍
科 / 演化支: Lessemsauridae6
分類: Sauropodomorpha > Sauropoda6
岩石的年代: 201 到 193 百萬年 (Hettangian / Sinemurian)6
岩層: Elliot6
國家: 南非6
化石紀錄: The Paleobiology Database 收錄 2 筆6
發現: Antetonitrus was named in 2003 by Adam Yates and James Kitching. The fossils were discovered by Kitching in 1981 in the Free State of South Africa and were stored as Euskelosaurus until Yates recognized them as a new dinosaur.1
仍有爭議: Scientists are not sure if Antetonitrus was a true sauropod or a very close relative, because it had both primitive and advanced features.1