恐龍卡第 1819 張，共 2 027 張

Torosaurus

名字的意思： “perforated lizard, because of the large holes in its frill”1

吃：植物角龍類白堊紀晚期

Torosaurus was a huge, plant-eating dinosaur with a giant frill on its head. It had the longest skull of any land animal that ever lived, and it may have lived in herds.1 2

生存年代

84 到 66 百萬年前6

白堊紀晚期

化石發現地

Western United States (Wyoming, Montana, South Dakota, North Dakota, Colorado, Utah, Texas, New Mexico) and Canada (Saskatchewan, Alberta)1 3

長度

7.5 到 9 m (25 到 30 ft)1

體重

8 公噸 (17,600 lb)1

高度

2 m (6.6 ft)4

最高速度

時速約 22 公里（14 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 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跟 1.5 頭大象一樣重跟 1600 顆西瓜一樣重跟 10 整班小學生一樣重跟 18 隻北極熊一樣重能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Torosaurus 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)

Torosaurus 時速約 22 公里 (14 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

Torosaurus had a frill that was 2.77 metres (9.1 feet) long, making its skull the longest of any known land animal.1

Its frill had large oval-shaped holes, which is why its name means 'perforated lizard'.1

Torosaurus lived at the same time and place as Triceratops, and some scientists think it might actually be a grown-up Triceratops.1

It weighed about 8 tonnes (18,000 pounds), as much as a big truck.1

Torosaurus fossils are much rarer than Triceratops fossils, which is one reason scientists are still debating about it.1

It had a short, upright horn on its nose, similar to a Triceratops.1

Torosaurus may have lived in social groups, based on bonebeds where several individuals were found together.2

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

?Is Torosaurus a dinosaur?

Yes, Torosaurus is a genus of herbivorous chasmosaurine ceratopsian dinosaur.1

?How big was Torosaurus?

Torosaurus measured between 7.5 and 9 metres (25 to 30 feet) long and weighed around 8 tonnes (18,000 pounds), about the same size as a large truck.1 2

?What did Torosaurus eat?

Torosaurus was a herbivore, meaning it ate plants, and it had a beak for grazing.1 2

?When did Torosaurus live?

Torosaurus lived during the late Cretaceous Period, between about 68 and 66 million years ago.1 2

?Is Torosaurus the same as Triceratops?

Some scientists think Torosaurus might be a grown-up Triceratops, but newer research suggests they are separate genera based on differences in skull shape and growth patterns.1 5

?Why does Torosaurus have holes in its frill?

The large oval holes, called fenestrae, in its frill are the reason for the name Torosaurus, which means 'perforated lizard'. Their exact purpose is not known for sure.1

?Where was Torosaurus found?

Torosaurus fossils have been discovered in the western United States and Canada, from Saskatchewan to Texas.1 2

?Did Torosaurus have any predators?

Torosaurus likely faced predators like Tyrannosaurus rex, which lived in the same time and place, but no specific attacks are recorded in the fossil record.1

迷思破解王

迷思： Torosaurus is a different dinosaur from Triceratops.

真相： Some scientists think Torosaurus might just be the adult form of Triceratops, because the frill changes shape as the animal grows older.1

給恐龍專家

學名: Torosaurus
命名者: Marsh 18916
類群: 角龍類
科 / 演化支: Ceratopsidae6
分類: Ornithischia > Ceratopsia > Ceratopsidae6
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)6
岩層: Hell Creek, Lance, Javelina6
國家: 美國, 加拿大6
化石紀錄: The Paleobiology Database 收錄 12 筆6
發現: Torosaurus was named by famous paleontologist Othniel Charles Marsh in 1891, based on two skulls found in Wyoming by John Bell Hatcher.1
仍有爭議: Scientists still debate whether Torosaurus is a separate genus or just a fully grown Triceratops.1