恐龍卡第 1668 張，共 2 027 張

Sinocephale

名字的意思： “Chinese head”1

吃：植物腫頭龍類白堊紀晚期

Sinocephale was a small, dome-headed dinosaur that lived in what is now China. It walked on two legs and used its thick, bony skull to head-butt rivals. Only a piece of its skull has been found, but scientists think it was a plant-eater.1 5

生存年代

84 到 66 百萬年前5

白堊紀晚期

化石發現地

Inner Mongolia, China (Ulansuhai Formation)1 5

長度

2.1 m (6.9 ft)3

體重

47 kg (104 lb)3

最高速度

時速約 44 公里（27 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 隻狗一樣重

跟 4 隻家貓從鼻子接到尾巴一樣長跟 12 根香蕉頭尾相接一樣長跟 12 隻家貓一樣重跟 9 顆西瓜一樣重跟 2.5 個幼兒園小朋友一樣重跟 1.5 個小學生一樣重能在 8.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Sinocephale 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)

Sinocephale 時速約 44 公里 (27 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

Sinocephale is the first pachycephalosaurid dinosaur ever found outside of North America.2

Its skull had a heart-shaped outline when viewed from above, because the back edge was deeply curved inward.1

The only known fossil is a piece of the skull roof, called a parietal bone. The original was lost, but plaster casts were found and used for study.1 2

Sinocephale was originally named as a species of Troodon in 1953, then moved to Stegoceras, and finally got its own genus in 2021.1

It lived during the Late Cretaceous, about 83 to 66 million years ago, in a floodplain environment with rivers.5 1

Sinocephale is related to famous dome-headed dinosaurs like Pachycephalosaurus and Prenocephale.1

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

?How big was Sinocephale?

Nobody knows for sure, because only a piece of the skull roof has been found. The dome was about 7.5 centimetres (3 inches) thick, but the full body size is unknown.1 4

?Did Sinocephale have a heart-shaped skull?

Yes. The back edge of its skull was deeply curved inward, giving the skull a heart-shaped outline when seen from above.1

?When did Sinocephale live?

Sinocephale lived during the Late Cretaceous, about 83 to 66 million years ago, in what is now Inner Mongolia, China.1

?What did Sinocephale eat?

Scientists think it was a plant-eater, based on its dome-headed dinosaur relatives, though no teeth or jaws have been found.1

迷思破解王

迷思： Some people think Sinocephale was a theropod dinosaur like Troodon.

真相： Sinocephale is actually a pachycephalosaur, a dome-headed plant-eater, not a meat-eating theropod.1

給恐龍專家

學名: Sinocephale
命名者: Evans et al. 20215
類群: 腫頭龍類
科 / 演化支: Pachycephalosauridae5
分類: Ornithischia > Pachycephalosauria5
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)5
岩層: Ulansuhai5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: The fossil was found in 1930 or 1931 by Swedish paleontologists in Inner Mongolia. It was named Troodon bexelli by Birger Bohlin in 1953, but later renamed Sinocephale bexelli in 2021.1
仍有爭議: Scientists are not sure exactly how old the Ulansuhai Formation is, so the age of Sinocephale is still debated.1