恐龍卡第 0311 張，共 2 027 張

Brontosaurus

名字的意思： “thunder lizard”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Brontosaurus was a giant, long-necked dinosaur that lived during the Late Jurassic period. It had a long whip-like tail and ate plants, using its huge body to reach ferns and other greenery.1

生存年代

155 到 143 百萬年前3

侏羅紀晚期到白堊紀早期

化石發現地

Utah and Wyoming, USA1

長度

19 到 23 m (62 到 75 ft)1

體重

14 公噸到 20 公噸 (30,900 到 44,100 lb)1

高度

5.1 m (17 ft)

估計值

最高速度

時速約 20 公里（12 英里）

跑步: Fastovsky & Weishampel 2009 (Apatosaurus trackways)

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 3 頭大象一樣重

跟 5 台汽車排成一排一樣長跟 130 根香蕉頭尾相接一樣長跟 13 台汽車一樣重跟 4000 顆西瓜一樣重跟 25 整班小學生一樣重跟 44 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 18 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Brontosaurus 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)

Brontosaurus 時速約 20 公里 (12 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

Brontosaurus was named by Othniel Charles Marsh in 1879, based on a partial skeleton found in Como Bluff, Wyoming.1

For many years, scientists thought Brontosaurus was the same as Apatosaurus, but a 2015 study showed it is a separate genus.1

The largest species, Brontosaurus excelsus, could reach up to 23 meters (75 feet) long and weigh as much as 20 tonnes (22 short tons).1

Brontosaurus had a very long neck and a whip-like tail, and its front legs were slightly shorter than its back legs.1

Young Brontosaurus grew very fast, reaching adult size in as little as 15 years.1

Brontosaurus lived about 156 to 146 million years ago during the Kimmeridgian and Tithonian ages.1

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

?Is Brontosaurus a real dinosaur?

Yes, Brontosaurus is a real dinosaur. Scientists once thought it was the same as Apatosaurus, but a 2015 study showed it is a separate genus.1 2

?How big was Brontosaurus?

The largest species, Brontosaurus excelsus, reached up to 21 to 23 metres (69 to 75 ft) long and weighed 15 to 20 tonnes (17 to 22 short tons). The smaller species Brontosaurus parvus was about 19 metres (62 ft) long.1

?What did Brontosaurus eat?

Brontosaurus was a herbivore that ate plants like ferns, cycadeoids, seed ferns, and horsetails. It likely fed at ground height as a nonselective browser.1

?When did Brontosaurus live?

Brontosaurus lived during the Late Jurassic period, about 156 to 146 million years ago.1

?Where was Brontosaurus found?

Brontosaurus fossils have been found in the Morrison Formation of what is now Utah and Wyoming in the United States.1

?Why is it called Brontosaurus?

The name Brontosaurus means 'thunder lizard' in Greek, from the words brontē (thunder) and sauros (lizard).1

?How fast did Brontosaurus grow?

Young Brontosaurus grew very fast, reaching adult size in as little as 15 years. One study found they could grow up to 5,000 kg (11,000 lb) in a single year.1

?Did Brontosaurus have feathers?

No, Brontosaurus did not have feathers. It was a sauropod dinosaur with scaly skin, like other large long-necked dinosaurs.1

?What is the difference between Brontosaurus and Apatosaurus?

Brontosaurus is generally less massive and has a thinner, higher-set neck than Apatosaurus. A 2015 study found enough differences to make them separate genera.1 2

?Could Brontosaurus swim?

Scientists are not sure if Brontosaurus could swim. It lived on land and its body was built for walking on four legs, but some dinosaurs may have been able to swim.1

迷思破解王

迷思： Brontosaurus is often thought to be the same dinosaur as Apatosaurus.

真相： While they were once considered synonyms, a 2015 study confirmed that Brontosaurus is a distinct genus from Apatosaurus.1

給恐龍專家

學名: Brontosaurus
命名者: Marsh 18793
類群: 長脖子恐龍
科 / 演化支: Diplodocidae3
分類: Sauropodomorpha > Sauropoda > Diplodocoidea3
岩石的年代: 155 到 143 百萬年 (Kimmeridgian / Tithonian)3
岩層: Morrison3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 23 筆3
又名: Elosaurus, Eobrontosaurus （舊名稱現在也算作同一種動物）3
發現: Brontosaurus was named by American paleontologist Othniel Charles Marsh in 1879, based on a partial skeleton found at Como Bluff, Wyoming.1
仍有爭議: Scientists still debate whether some fossils belong to Brontosaurus or its close relative Apatosaurus.1