恐龍卡第 1400 張，共 2 027 張

Pegomastax

名字的意思： “strong jaw”1

吃：植物有喙的草食恐龍侏羅紀早期

Pegomastax was a tiny, parrot-beaked dinosaur that lived in what is now South Africa. It used its strong jaws and sharp front teeth to chomp on tough plants, like a little dinosaur gardener.1

生存年代

201 到 193 百萬年前6

侏羅紀早期

化石發現地

Eastern Cape, South Africa2

長度

0.6 m (2 ft)3 4

高度

0.21 m (0.7 ft)

估計值

最高速度

時速約 17 公里（11 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

跟 3 根香蕉頭尾相接一樣長小到能從椅子底下走過去能在 21 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Pegomastax 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)

Pegomastax 時速約 17 公里 (11 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

Pegomastax had a very deep, parrot-like beak at the front of its jaw, which helped it bite into tough plants.1

Its skull was only about 73 mm (2.9 inches) long, smaller than a chicken's skull.1

Pegomastax lived alongside many other dinosaurs, including the long-necked Massospondylus and the small ornithischian Lesothosaurus.1

The only fossil of Pegomastax is a partial skull with a well-preserved lower jaw and teeth, found in the upper Elliot Formation.1

Scientists think Pegomastax may have been most closely related to a South American dinosaur called Manidens.1

Pegomastax had a mobile predentary bone in its lower jaw, which helped it move its beak up and down while chewing.1

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

?How big was Pegomastax?

About 0.6 metres (2 feet) long, about the size of a domestic cat.4 5

?Did Pegomastax have feathers?

Scientists think it was covered in porcupine-like quills, not feathers.4

?What did Pegomastax eat?

It was a plant-eater. It used its beak and cheek teeth like scissors to shear tough plants.1 4

?Why did Pegomastax have fangs?

It used its fangs for self-defense and competing for mates, like some modern plant-eating deer and peccaries.4

?When did Pegomastax live?

It lived during the Early Jurassic, about 200 to 190 million years ago.1

?Where was Pegomastax found?

Its only fossil was found in the upper Elliot Formation in South Africa.1

給恐龍專家

學名: Pegomastax
命名者: Sereno 20126
類群: 有喙的草食恐龍
科 / 演化支: Heterodontosauridae6
分類: Ornithischia > Heterodontosauridae6
岩石的年代: 201 到 193 百萬年 (Hettangian / Sinemurian)6
岩層: Elliot6
國家: 南非6
化石紀錄: The Paleobiology Database 收錄 1 筆6
發現: Pegomastax was named by American paleontologist Paul Sereno in 2012, based on a partial skull discovered in the 1966 to 1967 expedition to the Transkei District of Cape Province, South Africa.1
仍有爭議: Scientists are still debating whether the large canine teeth of Pegomastax were used for defense, display, or occasional omnivory.1