恐龍卡第 0488 張，共 2 027 張

Daspletosaurus

名字的意思： “frightful lizard”1

吃：肉暴龍類白堊紀晚期

Daspletosaurus was a big, scary meat-eater that lived in North America during the Late Cretaceous. It had a huge head full of sharp teeth and small arms, just like its famous cousin Tyrannosaurus rex.1

生存年代

84 到 66 百萬年前4

白堊紀晚期

化石發現地

Fossils have been found in Alberta, Canada, and Montana, USA.1 2 4

長度

8.5 到 9 m (28 到 30 ft)1 2

體重

2 公噸到 3 公噸 (4,400 到 6,600 lb)1

高度

2.2 m (7.2 ft)1

最高速度

時速約 29 公里（18 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 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 150 隻狗一樣重跟 600 顆西瓜一樣重跟 4 整班小學生一樣重跟 7 隻北極熊一樣重能在 12 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Daspletosaurus 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)

Daspletosaurus 時速約 29 公里 (18 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

Daspletosaurus lived about 77 to 74 million years ago, during the Late Cretaceous period.1

It had small arms, but they were proportionally longer than those of other tyrannosaurids like Tyrannosaurus.1

Scientists found a bonebed in Montana with three Daspletosaurus of different sizes, which might mean they lived in groups.1

Daspletosaurus sometimes lived alongside another tyrannosaur called Gorgosaurus, and they may have hunted different prey to avoid competition.1

One Daspletosaurus fossil had the remains of a baby hadrosaur in its belly, showing what it ate.1

Daspletosaurus is closely related to the much larger and later Tyrannosaurus rex.1

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

?How big was Daspletosaurus?

About 8.5 to 9 metres (28 to 30 feet) long and weighed 2 to 3 metric tons (2.2 to 3.3 short tons). One large specimen may have been over 9 metres (30 feet) long.1 2

?Was Daspletosaurus bigger than T. rex?

No, Daspletosaurus was smaller than T. rex. It was closely related to T. rex, but T. rex was much larger and lived later.1

?What did Daspletosaurus eat?

It was an apex predator that probably ate large dinosaurs like the horned Centrosaurus and the duck-billed Hypacrosaurus. One fossil even had a baby hadrosaur in its belly.1 3

?When did Daspletosaurus live?

It lived during the Late Cretaceous Period, about 77 to 74 million years ago.1 2

?Did Daspletosaurus have feathers?

No feather fossils have been found for Daspletosaurus, so it is typically depicted with scaly skin, though many of its relatives had feathers.1

?Could Daspletosaurus swim?

The sources do not say whether Daspletosaurus could swim. It lived near rivers and coastal plains, but there is no evidence about swimming ability.1 3

?How fast could Daspletosaurus run?

The sources do not give a running speed for Daspletosaurus. It was a large, heavy predator, so it probably was not very fast, but no exact speed is known.1

?Did Daspletosaurus live in groups?

Maybe. A bonebed in Montana had three Daspletosaurus of different sizes buried together, which might mean they lived in groups, but scientists are not sure.1

迷思破解王

迷思： Some people think Daspletosaurus was just a small Tyrannosaurus rex.

真相： Daspletosaurus was a separate genus that lived millions of years before T. rex, and it was smaller, about 8.5 to 9 metres long.1

給恐龍專家

學名: Daspletosaurus
命名者: Russell 19704
類群: 暴龍類
科 / 演化支: Tyrannosauridae4
分類: Theropoda > Tyrannosauroidea > Tyrannosauridae4
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)4
岩層: Two Medicine, Oldman, Dinosaur Park4
國家: 美國, 加拿大4
化石紀錄: The Paleobiology Database 收錄 21 筆4
發現: The first fossil was found in 1921 in Alberta by Charles M. Sternberg, but it was named Daspletosaurus by Dale Russell in 1970.1 4
仍有爭議: Scientists debate whether some Daspletosaurus species evolved directly into later species, a process called anagenesis, or if they were separate branches.1