恐龍卡第 0330 張，共 2 027 張

Callovosaurus

名字的意思： “Callovian lizard”1

吃：植物有喙的草食恐龍侏羅紀中期

Callovosaurus was a small, plant-eating dinosaur that lived in England during the Middle Jurassic. It walked on two legs and used its beak to nibble on plants. It is one of the earliest known members of the iguanodontian group, which later included bigger dinosaurs like Iguanodon.1

生存年代

165 到 162 百萬年前3

侏羅紀中期

化石發現地

Fletton brick pit, Peterborough, Cambridgeshire, England, United Kingdom3 1

長度

2.5 m (8.2 ft)1

高度

0.79 m (2.6 ft)

估計值

最高速度

時速約 45 公里（28 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 2.5 隻狗從鼻子接到尾巴一樣長跟 14 根香蕉頭尾相接一樣長能在 8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Callovosaurus 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)

Callovosaurus 時速約 45 公里 (28 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

Callovosaurus is known from just one nearly complete left thigh bone, which is 28 centimetres long.1

It lived about 164 million years ago, during the Callovian stage of the Middle Jurassic.1

The first fossil was collected by Alfred Nicholson Leeds, a famous fossil collector, from a brick pit near Peterborough.1

Callovosaurus was originally named Camptosaurus leedsi by Richard Lydekker in 1889, but later got its own genus in 1980.1

It lived alongside many other reptiles, including ichthyosaurs, plesiosaurs, and the stegosaurs Loricatosaurus and Lexovisaurus.1

Some scientists think Callovosaurus is the oldest known dryosaurid, but a 2025 study placed it outside that family.1

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

?How big was Callovosaurus?

It was about 2.5 metres (8.2 feet) long, based on its 28-centimetre thigh bone.1 2

?What did Callovosaurus eat?

It ate plants, like other iguanodontian dinosaurs.1

?When did Callovosaurus live?

It lived about 164 million years ago, during the Middle Jurassic.1 2

?Where was Callovosaurus found?

Its fossils were found in a brick pit near Peterborough, England.1 2

給恐龍專家

學名: Callovosaurus
命名者: Galton 19803
類群: 有喙的草食恐龍
科 / 演化支: Euiguanodontia3
分類: Ornithischia > Ornithopoda > Iguanodontia3
岩石的年代: 165 到 162 百萬年 (Callovian)3
岩層: Oxford Clay3
國家: 英國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The first fossil, a thigh bone, was found by Alfred Nicholson Leeds in the 1800s. Richard Lydekker named it Camptosaurus leedsi in 1889. In 1980, Peter Galton gave it the new genus name Callovosaurus.1
仍有爭議: Scientists are not sure whether Callovosaurus belongs to the dryosaurid family or is a more primitive iguanodontian.1