恐龍卡第 1707 張，共 2 027 張

Stegosaurus

名字的意思： “roof lizard”1

吃：植物劍龍類侏羅紀晚期到白堊紀晚期

Stegosaurus was a big, plant-eating dinosaur with a row of big plates on its back and spikes on its tail. It lived in the Late Jurassic period, about 155 to 145 million years ago, and is one of the most famous dinosaurs ever.1

生存年代

162 到 94 百萬年前4

侏羅紀晚期到白堊紀晚期

化石發現地

Western United States and Portugal1

長度

9 m (30 ft)1

體重

6.9 公噸 (15,200 lb)1

高度

2.6 m (8.5 ft)

估計值

最高速度

時速約 18 公里（11 英里）

跑步: limb proportion study (15 to 18 km/h)

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 5 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 50 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1400 顆西瓜一樣重跟 9 整班小學生一樣重跟 15 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）

Stegosaurus 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)

Stegosaurus 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

Stegosaurus had a very small brain compared to its body, but it still survived for millions of years.1

The plates on its back were probably used for display or to control body temperature, not for fighting.1

Its tail had spikes, and scientists think Stegosaurus used them to defend itself from predators like Allosaurus.1

Stegosaurus had small, peg-shaped teeth that were not good for chewing, so it probably swallowed plants whole.1

It could probably only eat plants that were about 1 meter (3 feet) above the ground, unless it stood on two legs.1

Stegosaurus is the state fossil of Colorado, USA, since 1982.1

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

?How big was Stegosaurus?

Stegosaurus usually grew to about 6.5 metres (21 feet) long, but some reached 9 metres (30 feet). The largest known specimens weighed over 6.9 metric tons (7.6 short tons).2 1

?What did Stegosaurus eat?

Stegosaurus was a herbivore, eating plants like mosses, ferns, horsetails, cycads, and conifers. It probably ate low-lying bushes and shrubs, foraging at most 1 metre (3 feet) above the ground.1 3

?When did Stegosaurus live?

Stegosaurus lived in the Late Jurassic period, about 155 to 145 million years ago.1 3

?Where was Stegosaurus found?

Fossils of Stegosaurus have been found in the western United States and in Portugal.1 3

?Why did Stegosaurus have plates on its back?

Scientists are not exactly sure. The plates may have been used for display, to recognize each other, or to regulate body temperature. They were probably not used for fighting.3 1

?Did Stegosaurus have a small brain?

Yes, Stegosaurus had a very small brain compared to its body. Its brain was around the size of a plum!3 1

?Could Stegosaurus defend itself?

Yes, Stegosaurus had a spiked tail that it probably used to defend itself from predators like Allosaurus.3 1

?Was Stegosaurus bigger than a T. rex?

No, Stegosaurus was about 9 metres (30 feet) long, while T. rex was about 12 metres (40 feet) long. Stegosaurus was smaller.1

?How many species of Stegosaurus are there?

There are three universally recognized species: Stegosaurus stenops, Stegosaurus ungulatus, and Stegosaurus sulcatus.1 2

?Is Stegosaurus a dinosaur?

Yes, Stegosaurus is a dinosaur. It is a herbivorous, four-legged armored dinosaur from the Late Jurassic.1 3

迷思破解王

迷思： Some people think Stegosaurus had a second brain in its hips to help control its body.

真相： Scientists now think that space in the hips was just for storing energy, not for a second brain.1

給恐龍專家

學名: Stegosaurus
命名者: Marsh 18774
類群: 劍龍類
科 / 演化支: Stegosauridae4
分類: Ornithischia > Stegosauria > Thyreophora4
岩石的年代: 162 到 94 百萬年 (Oxfordian / Cenomanian)4
岩層: Morrison, Alcobaça, Cedar Mountain4
國家: 美國, 葡萄牙, 中國4
化石紀錄: The Paleobiology Database 收錄 86 筆4
發現: O. C. Marsh named Stegosaurus in 1877. The first nearly complete skeleton was found in Colorado, USA, in 1885 and 1886 by Marshall P. Felch.1
仍有爭議: Scientists still debate how Stegosaurus ate enough plants to get so big, because its teeth and jaws were different from other plant-eating dinosaurs.1