恐龍卡第 1756 張，共 2 027 張

Tatankacephalus

名字的意思： “bison head”5

吃：植物甲龍類白堊紀早期

Tatankacephalus was an armoured dinosaur that walked on four legs and munched on plants. It had a thick, bony head and a big ridge at the back of its skull. It lived in what is now Montana, USA, about 100 million years ago.5 1

生存年代

113 到 100 百萬年前5

白堊紀早期

化石發現地

Montana, USA (Cloverly Formation)5 1

長度

7 m (23 ft)3 4

體重

2.5 公噸 (5,500 lb)4

高度

2 m (6.6 ft)

估計值

最高速度

時速約 14 公里（9 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？

估計值

牠有多重？

跟 1.5 台汽車一樣重

跟 7 隻狗從鼻子接到尾巴一樣長跟 39 根香蕉頭尾相接一樣長跟 120 隻狗一樣重跟 500 顆西瓜一樣重跟 3 整班小學生一樣重跟 6 隻北極熊一樣重能在 26 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Tatankacephalus 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)

Tatankacephalus 時速約 14 公里 (9 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

Tatankacephalus had a dome on its front skull, like some other armoured dinosaurs, which may have helped protect its brain.1

It had a large ridge at the back of its head that hid the back part of the skull when viewed from above.1

Its eye socket was round, and the hole at the back of the skull (foramen magnum) pointed down and backward.1

Unlike some later ankylosaurs, Tatankacephalus still had teeth in the front of its mouth (premaxillary teeth).1

It had a visible opening on the side of its skull (lateral temporal fenestra), which later ankylosaurs lost.1

Tatankacephalus is known from a skull and some other bones, but no complete skeleton has been found yet.1

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

?How big was Tatankacephalus?

About 7 metres (23 feet) long.3

?What did Tatankacephalus eat?

It ate plants. It was a herbivore.5

?When did Tatankacephalus live?

It lived during the Early Cretaceous period, about 108.5 million years ago.3

?Where was Tatankacephalus found?

Its fossils were found in the Cloverly Formation of central Montana, USA.3

迷思破解王

迷思： Some people think all armoured dinosaurs were slow and clumsy.

真相： Scientists don't know exactly how fast Tatankacephalus moved, but many armoured dinosaurs were likely able to walk steadily and may have been quicker than they look.5

給恐龍專家

學名: Tatankacephalus
命名者: Parsons and Parsons 20095
類群: 甲龍類
科 / 演化支: Nodosauridae5
分類: Ornithischia > Ankylosauria > Nodosauridae > Thyreophora5
岩石的年代: 113 到 100 百萬年 (Albian)5
岩層: Cloverly5
國家: 美國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Tatankacephalus was named by William L. Parsons and Kristen M. Parsons in 2009, based on a skull and other bones found in the Cloverly Formation of Montana.5 1
仍有爭議: Scientists debate whether Tatankacephalus belongs to the ankylosaurid family or the nodosaurid family, because it has features of both groups.5 1