恐龍卡第 1533 張，共 2 027 張

Rapaxavis

名字的意思： “grasping bird”1

吃：肉早期鳥類白堊紀早期

Rapaxavis was a tiny bird that lived during the time of the dinosaurs. It had a long, curved beak and special feet that could grab onto branches like a modern parrot.2

生存年代

121 到 113 百萬年前3

白堊紀早期

化石發現地

Liaoning Province, China1 3

最高速度

時速約 27 公里（17 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)

Rapaxavis 時速約 27 公里 (17 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

Rapaxavis had teeth only in the front of its upper and lower jaws, unlike many other birds.2

Its feet were perfectly adapted for grasping branches, making it one of the first birds known to be strongly arboreal (tree-living).2

The fossil of Rapaxavis was so well preserved that scientists could see the keratin sheaths on its toe claws.2

Rapaxavis lived about 113 million years ago, during the Early Cretaceous period.1

The holotype (main specimen) was a subadult, meaning it was not fully grown when it died.1

Its name comes from the Latin word 'rapax' meaning grasping, because of its strong feet.1

Rapaxavis 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Rapaxavis 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。

給恐龍專家

學名: Rapaxavis
命名者: Morschhauser et al. 20093
類群: 早期鳥類
科 / 演化支: Longipterygidae3
分類: Theropoda > Avialae3
岩石的年代: 121 到 113 百萬年 (Aptian)3
岩層: Jiufotang3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Rapaxavis was named in 2009 by Eric Morschhauser and colleagues. The fossil was found by Pan Lijun at Xiaioyugou, China, and was first thought to be a different bird called Longirostravis.1
仍有爭議: Scientists are not sure if Rapaxavis was fully grown when it died, because its bones were not completely fused.2