恐龍卡第 0618 張，共 2 027 張

Epidendrosaurus

名字的意思： “tree lizard”1

吃：肉肉食恐龍侏羅紀中期

Epidendrosaurus was a tiny, bird-like dinosaur that lived about 165 million years ago. It had an extra-long third finger on each hand, which it probably used to climb trees and grab insects. This little dinosaur was about the size of a house sparrow!1 2

生存年代

165 到 162 百萬年前5

侏羅紀中期

化石發現地

Daohugou, Ningcheng County, Nei Mongol, China2 1

最高速度

時速約 47 公里（29 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)

Epidendrosaurus 時速約 47 公里 (29 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

Epidendrosaurus had an extremely long third finger on each hand, nearly twice as long as in other similar dinosaurs.1

Its foot bones were arranged almost at the same level, like perching birds, which helped it grip branches.1

The only known fossil is a juvenile, so scientists are not sure how big an adult Epidendrosaurus would have been.1

It lived during the Middle Jurassic period, about 165 to 161 million years ago, in what is now China.2

Epidendrosaurus is one of the earliest known dinosaurs with adaptations for climbing trees.1

Its name means 'tree lizard' because of its tree-climbing lifestyle.1

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

?What did Epidendrosaurus eat?

It was a meat-eating dinosaur that probably ate insects, like the modern aye-aye which uses a long finger to find bugs in trees.3

?How big was Epidendrosaurus?

It was about the size of a house sparrow, so only about 14 to 16 centimetres long. But the only known fossil is a juvenile, so adults might have been a bit bigger.1 3

?Did Epidendrosaurus have feathers?

Yes, the related Scansoriopteryx fossil shows impressions of down-like feathers, and Epidendrosaurus probably had them too.4

?Could Epidendrosaurus fly?

No, it could not fly. It was a tree-climber that used its long fingers and grasping feet to move among branches, possibly gliding a little.4 3

?Why did Epidendrosaurus have a long third finger?

Scientists think the extremely long third finger helped it climb trees and grab insects, similar to how an aye-aye uses its long middle finger.3

?Is Epidendrosaurus a bird?

No, it is a small meat-eating dinosaur, not a bird. But it was very bird-like and is closely related to the ancestors of birds.5 4

給恐龍專家

學名: Epidendrosaurus
命名者: Zhang et al. 20025
類群: 肉食恐龍
科 / 演化支: Scansoriopterygidae5
分類: Theropoda5
岩石的年代: 165 到 162 百萬年 (Callovian)5
岩層: Tiaojishan5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Epidendrosaurus was named in 2002 by Zhang Fucheng and his team based on a single juvenile skeleton found at Daohugou in Inner Mongolia, China.2 1
仍有爭議: Scientists are not sure exactly what the extremely long third finger was used for, though it may have helped with climbing or grabbing.1