恐龍卡第 0522 張，共 2 027 張

Diplodocus

名字的意思： “double beam”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Diplodocus was a super long dinosaur that lived about 150 million years ago. It had a very long neck and an even longer tail, and it used its pencil-like teeth to strip leaves from plants. Despite its huge size, it was lighter than many other giant sauropods.2 1

生存年代

158 到 143 百萬年前5

侏羅紀晚期到白堊紀早期

化石發現地

Colorado, Montana, New Mexico, Oklahoma, South Dakota, Utah, Wyoming, USA5 2

長度

24.3 到 28 m (80 到 92 ft)1 2

體重

15 公噸 (33,100 lb)2

高度

4 到 5 m (13 到 16 ft)3

最高速度

時速約 13 公里（8 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 2.5 頭大象一樣重

跟 6 台汽車排成一排一樣長跟 160 根香蕉頭尾相接一樣長跟 10 台汽車一樣重跟 3000 顆西瓜一樣重跟 19 整班小學生一樣重跟 33 隻北極熊一樣重高到能從 2 樓的窗戶往裡看能在 28 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Diplodocus 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)

Diplodocus 時速約 13 公里 (8 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

Diplodocus had about 80 vertebrae in its tail alone, which made up almost one third of its entire body length.1

Its tail was very long and whip-like, and scientists think it might have been used to make loud cracking sounds to scare off predators.2

Diplodocus had narrow, pointed bony spines lining its back, which may have helped support its body.2

Ligaments running from its hip to the back of the neck helped Diplodocus hold its neck horizontally without using much muscle effort.2

An Apatosaurus of similar size would have weighed two to three times more than a Diplodocus, because Diplodocus was lightly built.1

Diplodocus lived in a hot, dry environment like a savannah, alongside dinosaurs such as Allosaurus, Brontosaurus, and Stegosaurus.2

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

?How big was Diplodocus?

Diplodocus was about 24 to 26 metres (79 to 85 ft) long and weighed around 12 to 15 metric tons (13 to 17 short tons). That is as long as two school buses parked end to end.4 2

?What did Diplodocus eat?

Diplodocus was an herbivore that ate soft plants and leaves from trees. It used its small, peg-like teeth to strip leaves off branches.2 4

?When did Diplodocus live?

Diplodocus lived during the Late Jurassic period, about 152 to 145 million years ago.2 4

?Where was Diplodocus found?

Diplodocus fossils have been found in North America, especially in the mid-western United States, in rocks of the Morrison Formation.4 2

?Was Diplodocus bigger than T. rex?

Yes, Diplodocus was much longer than T. rex. While T. rex was about 12 metres (40 ft) long, Diplodocus could reach 26 metres (85 ft) or more. But T. rex was heavier and more heavily built.4 2

?Did Diplodocus have feathers?

No, Diplodocus did not have feathers. It had scaly skin, and some related dinosaurs had narrow, pointed spines on their tails and backs, like an iguana.4 2

?How fast could Diplodocus run?

Probably up to about 13 km/h (8 mph), about as fast as a kid running fast. This is an estimate from its size. Diplodocus was very big and heavy, so it moved slowly, like an elephant.2

?Could Diplodocus swim?

There is no direct evidence that Diplodocus could swim, but like most large land animals, it probably could wade through water if needed.2

?Why did Diplodocus have a long neck?

Diplodocus had a long neck to reach high and low vegetation without moving its huge body much. This helped it save energy.2

?Did Diplodocus have any predators?

Yes, large predators like Allosaurus and Ceratosaurus lived at the same time and place as Diplodocus. However, Diplodocus was so huge that it was probably safe from most attacks.4 2

迷思破解王

迷思： Some people think Diplodocus held its neck straight up like a giraffe.

真相： Scientists now believe that Diplodocus held its neck horizontally, supported by strong ligaments, not upright.2

給恐龍專家

學名: Diplodocus
命名者: Marsh 18785
類群: 長脖子恐龍
科 / 演化支: Diplodocidae5
分類: Sauropodomorpha > Sauropoda > Diplodocoidea5
岩石的年代: 158 到 143 百萬年 ()5
岩層: Morrison5
國家: 美國5
化石紀錄: The Paleobiology Database 收錄 66 筆5
又名: Seismosaurus （舊名稱現在也算作同一種動物）5
發現: Diplodocus was first described in 1878 by paleontologist Othniel Charles Marsh during the 'Bone Wars', a fierce competition between fossil hunters.1 5
仍有爭議: Scientists still debate whether Diplodocus could crack its tail like a whip to make a loud sound, or if it was used for other purposes.2