恐龍卡第 0056 張，共 2 027 張

Alaskacephale

名字的意思： “Alaska head”1

吃：植物腫頭龍類白堊紀晚期

Alaskacephale was a small, dome-headed dinosaur that lived in the cold Arctic of ancient Alaska. It had a thick, bony skull with two rows of bumps along the back of its head. This plant-eater was one of the few dinosaurs that lived near the North Pole.1

生存年代

72 到 66 百萬年前2

白堊紀晚期

化石發現地

North Slope of Alaska, USA, in the Prince Creek Formation1 2

長度

1.5 m (4.9 ft)1

體重

10 kg (22 lb)1

最高速度

時速約 33 公里（21 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？

牠有多重？

跟 2.5 隻家貓一樣重

跟 3 隻家貓從鼻子接到尾巴一樣長跟 8 根香蕉頭尾相接一樣長跟 83 根香蕉一樣重能在 11 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Alaskacephale 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)

Alaskacephale 時速約 33 公里 (21 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

Alaskacephale lived about 70 to 69 million years ago, during the Maastrichtian stage of the Late Cretaceous.1

Only one fossil of Alaskacephale has been found: a piece of skull bone called a squamosal.1

The skull had two rows of bony bumps that helped scientists tell it apart from other dome-headed dinosaurs.1

Alaskacephale lived in a cold Arctic environment with winter darkness for 120 days and temperatures as low as -2°C (28°F).1

It shared its home with other dinosaurs like the horned Pachyrhinosaurus, the duck-billed Edmontosaurus, and the tyrannosaur Nanuqsaurus.1

Alaskacephale was about half the size of its relative Pachycephalosaurus, making it one of the smaller pachycephalosaurs.1

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

?How big was Alaskacephale?

About 1.5 metres long and 10 kilograms, based on a similarly sized relative. It was one of the smaller pachycephalosaurs.1

?What did Alaskacephale eat?

It was a plant-eater, like all dome-headed dinosaurs.1

?When did Alaskacephale live?

It lived about 72 to 71 million years ago, during the Late Cretaceous (Maastrichtian stage).1

?Is Alaskacephale a dinosaur?

Yes, it is a dome-headed dinosaur (a pachycephalosaur).1

?Why did Alaskacephale have a thick skull?

The thick, bony dome on its skull might have been used for head-butting or for display, but scientists are not sure.1

?Did Alaskacephale have feathers?

Nobody knows for sure. No fossil feathers have been found with Alaskacephale, and it is not known if pachycephalosaurs had feathers.1

給恐龍專家

學名: Alaskacephale
命名者: Sullivan 20062
類群: 腫頭龍類
科 / 演化支: Pachycephalosauridae2
分類: Ornithischia > Pachycephalosauria2
岩石的年代: 72 到 66 百萬年 (Maastrichtian)2
岩層: Prince Creek2
國家: 美國2
化石紀錄: The Paleobiology Database 收錄 1 筆2
發現: The only fossil was found in 1999 by a University of Alaska expedition on the Colville River. It was named Alaskacephale gangloffi in 2006 by paleontologist Robert Sullivan, honoring the earlier researcher Roland Gangloff.1
仍有爭議: Scientists are not sure exactly how big Alaskacephale was, because only a skull fragment has been found.1