恐龍卡第 0720 張，共 2 027 張

Giraffatitan

名字的意思： “titanic giraffe”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Giraffatitan was a giant, long-necked plant-eater that lived in what is now Tanzania. It had a giraffe-like shape with very long front legs and a tall skull. This dinosaur could reach high into the trees to munch on leaves that other dinosaurs couldn't reach.1

生存年代

162 到 143 百萬年前3

侏羅紀晚期到白堊紀早期

化石發現地

Tendaguru Formation, Lindi Region, Tanzania1 3

長度

23 到 26 m (75 到 85 ft)1 2

體重

40 公噸到 48 公噸 (88,200 到 105,800 lb)1

高度

12 到 16 m (39 到 52 ft)1

最高速度

時速約 9 公里（6 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 8 頭大象一樣重

跟 6 台汽車排成一排一樣長跟 140 根香蕉頭尾相接一樣長跟 9600 顆西瓜一樣重跟 3 隻長頸鹿疊起來一樣高跟 60 整班小學生一樣重跟 110 隻北極熊一樣重高到能從 6 樓的窗戶往裡看能在 40 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Giraffatitan 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)

Giraffatitan 時速約 9 公里 (6 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

Giraffatitan was first thought to be an African species of Brachiosaurus, but scientists now think it is a separate genus because of many differences in its bones.1

The name Giraffatitan means 'titanic giraffe' because its long neck and sloping body reminded scientists of a giraffe.1

Most size estimates come from a subadult skeleton called HMN SII, but a larger leg bone suggests some Giraffatitan grew even bigger, up to 26 metres long.1

Its nostrils were once thought to be on top of its head, like a snorkel, but modern studies show they were near the tip of the snout.1

Giraffatitan lived about 150 to 145 million years ago, during the Late Jurassic period, in a warm, seasonal climate with forests and coastal lagoons.1

It had a very long neck that could only move up and down a little, so it probably fed on treetop leaves without swinging its head sideways much.1

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

?How big was Giraffatitan?

About 23 metres (75 feet) long and 12 metres (39 feet) tall. The largest individuals may have reached 26 metres (85 feet) and weighed up to 48 tonnes (53 tons).1 2

?What did Giraffatitan eat?

It was a plant-eater (herbivore) that ate leaves from the tops of trees. Its long neck and chisel-like teeth helped it reach and bite off foliage that other dinosaurs couldn't.1 2

?When did Giraffatitan live?

It lived during the Late Jurassic Period, about 154 to 142 million years ago.2

?Where was Giraffatitan found?

Its fossils were discovered in Tanzania, Africa, at a place called Tendaguru.1 2

?Was Giraffatitan bigger than T. rex?

Yes, much bigger. Giraffatitan was about 23 metres long and weighed up to 48 tonnes, while T. rex was only about 12 metres long and weighed around 8 tonnes.1

?Is Giraffatitan a dinosaur?

Yes, it is a dinosaur. It is a sauropod, a group of four-legged, long-necked plant-eating dinosaurs.1 2

?Why did Giraffatitan have a long neck?

Its long neck helped it reach high into trees to eat leaves that other dinosaurs could not reach. Its neck could only move up and down a little, so it probably fed on treetop leaves without swinging its head sideways much.1

?Could Giraffatitan swim?

No, scientists now think it was a fully land animal. Water pressure would have made it hard to breathe if it was submerged, and its feet were too narrow for swimming.1

迷思破解王

迷思： Some people think Giraffatitan spent most of its time in water to support its heavy body.

真相： Scientists now believe it was fully land-living, because water pressure would have made breathing difficult and its feet were not good for swimming.1

給恐龍專家

學名: Giraffatitan
命名者: (Paul 1988)3
類群: 長脖子恐龍
科 / 演化支: Brachiosauridae3
分類: Sauropodomorpha > Sauropoda > Macronaria3
岩石的年代: 162 到 143 百萬年 (Oxfordian / Tithonian)3
岩層: Tendaguru3
國家: 坦尚尼亞3
化石紀錄: The Paleobiology Database 收錄 42 筆3
發現: Giraffatitan was discovered in Tanzania by a German expedition led by Werner Janensch, who first named it Brachiosaurus brancai in 1914. It was later given its own genus name Giraffatitan by Gregory S. Paul in 1988.1
仍有爭議: Scientists still debate whether Giraffatitan should be a separate genus from Brachiosaurus or just a close relative.1