恐龍卡第 1032 張，共 2 027 張

Leptoceratops

名字的意思： “small horn face”1

吃：植物角龍類白堊紀晚期

Leptoceratops was a tiny horned dinosaur that lived at the very end of the Age of Dinosaurs. It had a small frill on its head and no horns, and it walked on two legs. Even though it was small, it was a tough plant-eater that lived alongside giants like Triceratops and Tyrannosaurus.1

生存年代

72 到 66 百萬年前6

白堊紀晚期

化石發現地

Alberta, Canada and Montana and Wyoming, USA1 2

長度

2 到 3 m (6.6 到 9.8 ft)1

體重

100 kg 到 200 kg (220 到 441 lb)1

高度

0.8 到 1 m (2.6 到 3.3 ft)1

最高速度

時速約 37 公里（23 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 10 隻狗一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 40 顆西瓜一樣重跟 11 個幼兒園小朋友一樣重跟 6 個小學生一樣重能在 9.7 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Leptoceratops 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)

Leptoceratops 時速約 37 公里 (23 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

Leptoceratops is one of the smallest horned dinosaurs ever found, only about the size of a large dog.1

Unlike its big cousin Triceratops, Leptoceratops had no horns and only a tiny frill at the back of its skull.1

The first Leptoceratops fossils were discovered in 1910 by Barnum Brown along the Red Deer River in Alberta, Canada.1 3

Scientists have found at least eight Leptoceratops specimens, including several nearly complete skeletons.2

Leptoceratops lived right at the end of the Cretaceous Period, about 66 to 72 million years ago.6

Some bonebeds in Montana suggest that Leptoceratops may have dug burrows and lived in groups.3

Leptoceratops had a deep, pointed beak and teeth with simple roots, perfect for chewing tough plants.2

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

?How big was Leptoceratops?

About 2 metres (6.6 feet) long and 0.6 to 0.9 metres (2 to 3 feet) tall at the hips, roughly the size of a large dog.1 4

?Did Leptoceratops have horns?

No, Leptoceratops had no horns, only a small frill on its head, unlike its big cousin Triceratops.1 4

?What did Leptoceratops eat?

It was a plant-eater that ate tough plants like angiosperms, conifers, and cycads, using its beak and special teeth to chew.1

?Could Leptoceratops walk on two legs?

Yes, it likely walked on two legs when moving fast and on all fours when moving slowly.1 4

?When did Leptoceratops live?

It lived at the very end of the Cretaceous Period, about 66 to 72 million years ago.1 5

?Where was Leptoceratops found?

Fossils have been found in Canada (Alberta) and the United States (Montana and Wyoming).1 5

迷思破解王

迷思： Leptoceratops is often thought to be a baby Triceratops because of its small size and simple frill.

真相： Leptoceratops is a separate, smaller species of horned dinosaur that lived at the same time as Triceratops. It had its own unique features like a tiny frill and no horns.1

給恐龍專家

學名: Leptoceratops
命名者: Brown 19146
類群: 角龍類
科 / 演化支: Leptoceratopsidae6
分類: Ornithischia > Ceratopsia6
岩石的年代: 72 到 66 百萬年 (Maastrichtian)6
岩層: Scollard, Hell Creek, "Lance"6
國家: 美國, 加拿大6
化石紀錄: The Paleobiology Database 收錄 8 筆6
發現: Leptoceratops was named by American paleontologist Barnum Brown in 1914, based on a partial skull and skeleton found in 1910 in Alberta, Canada.1 3
仍有爭議: Scientists still debate whether some fossils from Montana belong to Leptoceratops or to its close relatives Montanoceratops and Cerasinops.1