恐龍卡第 0852 張，共 2 027 張

Iberomesornis

名字的意思： “Iberian middle bird”1

吃：肉早期鳥類白堊紀早期

Iberomesornis was a tiny bird that lived about 125 million years ago in what is now Spain. It was no bigger than a sparrow and fluttered through warm forests near lakes, snatching insects. It was an early bird, but not a dinosaur like T. rex, it was a type of bird called an enantiornithine.1

生存年代

126 到 121 百萬年前3

白堊紀早期

化石發現地

Las Hoyas, Cuenca Province, east central Spain1

長度

0.087 m (0.3 ft)1

翼展

0.2 m (0.7 ft)1

體重

0.015 kg 到 0.02 kg (0 到 0 lb)1

最高速度

時速約 19 公里（12 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？

牠有多重？

跟 0 根香蕉一樣重

比一隻家貓還輕跟 2.5 塊積木排成一排一樣長能在 20 秒內飛越一整座足球場

Iberomesornis 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)

Iberomesornis 時速約 19 公里 (12 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

Iberomesornis had a single claw on each wing, which is unusual for modern birds.1

Its tail was short and ended in a pygostyle, a fused bone that supports tail feathers, making it more advanced than Archaeopteryx.1

It had strong, clawed feet for perching on branches, with long curved toes and a special toe that helped it grip.1

The fossil was found in rocks that were once a forest around a lake, with a warm climate and a dry season.1

Its ribcage did not have bony uncinate processes, but scientists think it had cartilage there instead.1

Iberomesornis is one of the earliest known enantiornithine birds, a group that lived alongside dinosaurs.1

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

?How big was Iberomesornis?

It was tiny, no bigger than a large modern sparrow. Its wingspan was about 20 centimetres (8 inches) and it weighed 15 to 20 grams (0.5 to 0.7 ounces).1

?What did Iberomesornis eat?

Nobody knows for sure because its skull has not been found. It probably hunted insects and other small animals, catching them in the air or from the ground.1

?Could Iberomesornis fly?

Yes, it could flap its wings and fly. A 2025 study found that it had strong muscles for flapping flight, even though it lacked a bony keel on its breastbone.2

?When did Iberomesornis live?

It lived about 125 million years ago, during the Early Cretaceous period. Its fossils were found in Spain.1

迷思破解王

迷思： Some people think Iberomesornis was a dinosaur like Velociraptor.

真相： It was a bird, specifically an enantiornithine, which is a type of bird that lived in the Cretaceous. Birds are related to dinosaurs, but they are not the same as non-avian dinosaurs.1

給恐龍專家

學名: Iberomesornis
命名者: Sanz et al. 19903
類群: 早期鳥類
科 / 演化支: Enantiornithes3
分類: Theropoda > Avialae3
岩石的年代: 126 到 121 百萬年 (Barremian)3
岩層: La Huérguina3
國家: 西班牙3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: The fossil was found in 1985 by Armando Díaz Romeral in Spain. It was named Iberomesornis romerali in 1992 by José Luis Sanz and José Fernando Bonaparte.1
仍有爭議: Scientists are not sure what Iberomesornis ate because its skull has not been found, so they guess it ate insects and small animals.1