恐龍卡第 1473 張，共 2 027 張

Proceratosaurus

名字的意思： “before Ceratosaurus”1

吃：肉暴龍類侏羅紀中期

Proceratosaurus was a small, meat-eating dinosaur that lived in what is now England during the Middle Jurassic. It is one of the earliest known relatives of the mighty Tyrannosaurus rex, but it was much smaller and had a crest on its snout.1 2

生存年代

168 到 165 百萬年前4

侏羅紀中期

化石發現地

Minchinhampton, Gloucestershire, England, United Kingdom1 4

長度

3 到 4.1 m (9.8 到 13 ft)1 2

體重

28 kg 到 100 kg (62 到 220 lb)1

高度

1.5 m (4.9 ft)

估計值

最高速度

時速約 50 公里（31 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 5 隻狗一樣重

跟 4 隻狗從鼻子接到尾巴一樣長跟 23 根香蕉頭尾相接一樣長跟 20 顆西瓜一樣重跟 5 個幼兒園小朋友一樣重跟 3 個小學生一樣重能在 7.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Proceratosaurus 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)

Proceratosaurus 時速約 50 公里 (31 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

Proceratosaurus is known from only one partial skull, so scientists are not sure exactly what the rest of its body looked like.2

It had a bony crest on top of its snout, which was probably used to show off to other dinosaurs, not for fighting.1

Proceratosaurus lived about 166 million years ago, during the Middle Jurassic, when England was a warm, subtropical island.1

Its teeth were different shapes: D-shaped teeth at the front of the jaw and flattened, serrated teeth at the sides.1

Scientists used computer models to estimate that Proceratosaurus had a bite force of about 390 newtons, similar to a modern fox.1

Proceratosaurus is a member of the group Proceratosauridae, which includes some of the earliest tyrannosauroids.1

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

?How big was Proceratosaurus?

About 3 metres long, not counting the tail. It weighed around 28 to 36 kilograms, about the size of a large dog.1 2

?When did Proceratosaurus live?

It lived during the Middle Jurassic, about 166 million years ago.1 2

?What did Proceratosaurus eat?

Proceratosaurus was a meat-eater (carnivore). It probably ate small prey like lizards and small dinosaurs.1 3

?Did Proceratosaurus have feathers?

Scientists think it probably did. Close relatives like Yutyrannus had downy feathers, so it is reasonable to infer Proceratosaurus had them too.1

?Was Proceratosaurus bigger than T. rex?

No. Proceratosaurus was much smaller, only about 3 metres long. T. rex was over 12 metres long and weighed many times more.1

?Where was Proceratosaurus found?

Its only skull was discovered in Gloucestershire, England, near the town of Minchinhampton.1 3

迷思破解王

迷思： Proceratosaurus was a close relative of Ceratosaurus.

真相： Proceratosaurus was named because scientists thought it was related to Ceratosaurus, but later studies showed it is actually an early relative of Tyrannosaurus rex.1

給恐龍專家

學名: Proceratosaurus
命名者: Huene 19264
類群: 暴龍類
科 / 演化支: Proceratosauridae4
分類: Theropoda > Tyrannosauroidea4
岩石的年代: 168 到 165 百萬年 (Bathonian)4
岩層: White Limestone4
國家: 英國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: The skull was found by F. Lewis Bradley while digging a reservoir near Minchinhampton, England. It was first named Megalosaurus bradleyi in 1910, then given its own genus Proceratosaurus in 1926.1
仍有爭議: Scientists are not sure exactly how big Proceratosaurus was, because only its skull has been found.2