恐龍卡第 0813 張，共 2 027 張

Holbotia

名字的意思： “named after the Holbot locality where it was found”1

吃：肉早期鳥類白堊紀早期

Holbotia was a small, feathered dinosaur that could fly, called a bird. It lived in Mongolia about 125 million years ago, during the Early Cretaceous. It had a special neck that could bend in a very flexible way, which was unusual for its kind.2

生存年代

133 到 121 百萬年前4

白堊紀早期

化石發現地

Mongolia (Ovorkhangai), in the Andaikhudag Formation3 2

長度

0.1 到 0.5 m (0.3 到 1.6 ft)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

牠有多大？

牠有多長？

跟 3 根香蕉頭尾相接一樣長跟 16 塊積木排成一排一樣長能在 14 秒內飛越一整座足球場

Holbotia 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)

Holbotia 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

Holbotia had a very flexible neck, with a bone shape that allowed it to bend its head in a way similar to modern darters, which are fish-eating birds.2

Its lower jaw had unusually widely spaced small teeth, which is different from many other early birds that had teeth packed closely together.2

Holbotia is the first articulated (still connected) skeleton of an enantiornithine bird ever found in Mongolia.2

The fossil was originally thought to be a pterosaur, a flying reptile, but scientists later realized it was a bird.2

Holbotia lived between 132 and 121 million years ago, during the Hauterivian to Barremian ages of the Early Cretaceous.3

It had a crest on the back of its lower leg bone, a feature not seen in other early birds of its group.2

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

迷思破解王

迷思： Some people think Holbotia was a pterosaur because its fossil was first misidentified.

真相： Holbotia was actually a bird, a type of feathered dinosaur, not a flying reptile. Scientists corrected the mistake after studying the bones.2

給恐龍專家

學名: Holbotia
命名者: Zelenkov and Averianov 20154
類群: 早期鳥類
科 / 演化支: Enantiornithes4
分類: Theropoda > Avialae4
岩石的年代: 133 到 121 百萬年 (Hauterivian / Barremian)4
岩層: Andaikhudag4
國家: 蒙古4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: The fossil was unearthed in 1977 by palaeoentomologist Alexander G. Ponomarenko, but it was not officially named until 2015 by Zelenkov and Averianov. The species name honors Ponomarenko.1 2
仍有爭議: Scientists are still debating how Holbotia is related to other early birds, especially whether its tooth loss evolved separately from other bird groups.2