恐龍卡第 1323 張，共 2 027 張

Ornithodesmus

名字的意思： “bird link”1

吃：魚飛行爬蟲類白堊紀早期嚴格來說不是恐龍

Ornithodesmus was a flying reptile that lived about 125 million years ago. It was once thought to be a bird, but scientists now know it was a pterosaur. It soared over the floodplains of what is now the Isle of Wight in England.1

趣味小知識：翼龍在恐龍頭上飛來飛去，但牠們是恐龍的親戚，不是恐龍喔。

生存年代

137 到 121 百萬年前2

白堊紀早期

化石發現地

Isle of Wight, England1

長度

1.5 到 1.8 m (4.9 到 5.9 ft)1

最高速度

時速約 71 公里（44 英里）

飛行, 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？

跟 4 隻家貓從鼻子接到尾巴一樣長跟 10 根香蕉頭尾相接一樣長能在 5.3 秒內飛越一整座足球場

Ornithodesmus 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)

一匹飛奔的馬 時速約 65 公里 (40 mph)

Ornithodesmus 時速約 71 公里 (44 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Ornithodesmus was first described in 1887 by Harry Govier Seeley, who thought it was a bird because of its bird-like hip bones.1

The only known fossil of Ornithodesmus is a set of six fused vertebrae from the hip, called a sacrum.1

For many years, scientists mistakenly thought Ornithodesmus was a pterosaur, and other pterosaur fossils were given the same name. Those fossils were later renamed Istiodactylus in 2001.1

The name Ornithodesmus comes from Greek words meaning 'bird link', because Seeley thought it was a link between birds and dinosaurs.1

The species name cluniculus means 'little buttock' in Latin, a reference to the small thigh muscles suggested by the fossil.1

Ornithodesmus lived during the Early Cretaceous period, about 125 million years ago, in a floodplain environment with rivers and lakes.1

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

?Is Ornithodesmus a dinosaur?

No, Ornithodesmus is a pterosaur, which is a flying reptile and not a dinosaur. While some fossils were once confused with dromaeosaurid dinosaurs, it is now classified as an azhdarchoid pterosaur.1

?How big was Ornithodesmus?

Ornithodesmus was small, with a total body length of about 1.5 to 1.8 metres. That is roughly the size of a large dog.1

?What did Ornithodesmus eat?

Nobody knows for sure what Ornithodesmus ate, but as an azhdarchoid pterosaur, it likely fed on small animals or insects. Previous associations with dromaeosaurid teeth were based on misidentifications.1

?When did Ornithodesmus live?

Ornithodesmus lived about 125 million years ago, during the Early Cretaceous period. It lived in a floodplain environment with rivers and lakes on what is now the Isle of Wight in England.1

迷思破解王

迷思： Ornithodesmus was a bird.

真相： Ornithodesmus was actually a pterosaur, a flying reptile, not a bird. The confusion happened because its hip bones looked bird-like.1

給恐龍專家

學名: Ornithodesmus
命名者: Seeley 18872
類群: 飛行爬蟲類
科 / 演化支: Ornithocheiroidea2
分類: Pterosauria > Pterodactyloidea2
岩石的年代: 137 到 121 百萬年 (Valanginian / Barremian)2
岩層: Wadhurst Clay, Wessex2
國家: 英國2
化石紀錄: The Paleobiology Database 收錄 2 筆2
發現: Ornithodesmus was named by Harry Govier Seeley in 1887 based on a fossil sacrum found by Reverend William Fox in Brook Bay, Isle of Wight, England.1
仍有爭議: Scientists are still unsure exactly what type of pterosaur Ornithodesmus was, because the only known fossil is a small piece of the hip.1