恐龍卡第 1245 張，共 2 027 張

Navajoceratops

名字的意思： “Navajo horned face”1

吃：植物角龍類白堊紀晚期

Navajoceratops was a horned dinosaur that lived in what is now New Mexico, USA, about 75 million years ago. It had a big frill on its head and a deep notch in the back of its skull that slowly closed up over time as the species evolved.2

生存年代

84 到 72 百萬年前5

白堊紀晚期

化石發現地

New Mexico, USA1 3

長度

6.1 到 7.6 m (20 到 25 ft)4

體重

4.536 公噸 (10,000 lb)4

高度

1.5 到 1.8 m (4.9 到 5.9 ft)4

最高速度

時速約 26 公里（16 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 3 台汽車一樣重

跟 8 隻狗從鼻子接到尾巴一樣長跟 42 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 910 顆西瓜一樣重跟 6 整班小學生一樣重跟 10 隻北極熊一樣重能在 14 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Navajoceratops 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)

Navajoceratops 時速約 26 公里 (16 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

Navajoceratops is known from only a partial skull, including the back part of its frill called the parietal.1

It lived during the Campanian stage of the Late Cretaceous, between about 75.0 and 73.4 million years ago.2

Navajoceratops is a chasmosaurine ceratopsid, meaning it is closely related to famous horned dinosaurs like Triceratops.1

The deep notch in the back of its frill is a key feature that helps scientists understand how chasmosaurine dinosaurs evolved over time.2

Its fossils were found in the Hunter Wash Member of the Kirtland Formation in the San Juan Basin.2

Navajoceratops was named after the Navajo people, who are indigenous to the area where the fossils were discovered.1

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

?What did Navajoceratops eat?

Navajoceratops was a herbivore, meaning it ate plants. It lived on the ground and likely fed on low-growing vegetation.5

?How big was Navajoceratops?

Scientists don't know its exact size because only a partial skull has been found. The skull parts suggest it was a medium-sized ceratopsian, but no full body length estimate is available.5

?When did Navajoceratops live?

Navajoceratops lived during the Late Cretaceous Period, about 75 to 73.4 million years ago, in what is now New Mexico, USA.1 5

?Why is it called Navajoceratops?

It is named after the Navajo people, who are indigenous to the area where the fossils were found. The name means 'Navajo horned face'.1

給恐龍專家

學名: Navajoceratops
命名者: Fowler and Freedman Fowler 20205
類群: 角龍類
科 / 演化支: Ceratopsidae5
分類: Ornithischia > Ceratopsia > Ceratopsidae5
岩石的年代: 84 到 72 百萬年 (Campanian)5
岩層: Kirtland5
國家: 美國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Navajoceratops was named in 2020 by Denver W. Fowler and Elizabeth A. Freedman Fowler. The holotype specimen was collected in 2002 by Robert M. Sullivan and others from the Kirtland Formation in New Mexico.1 2
仍有爭議: Scientists are not sure whether Navajoceratops is a separate species or just a growth stage of another ceratopsian, because only a few bones have been found.2