恐龍卡第 1036 張，共 2 027 張

Leptostomia

名字的意思： “slender mouth”1

吃：昆蟲飛行爬蟲類白堊紀晚期嚴格來說不是恐龍

Leptostomia was a tiny pterosaur with a very long, thin beak. It used its beak like a straw to poke into mud and grab worms or bugs. It lived in what is now Morocco, near rivers and mangroves.1 2

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

100 到 94 百萬年前4

白堊紀晚期

化石發現地

Morocco, near the oasis village Hassi El Begaa1 4

長度

0.06 到 0.2 m (0.2 到 0.7 ft)1

最高速度

時速約 29 公里（18 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 6 塊積木排成一排一樣長能在 13 秒內飛越一整座足球場

Leptostomia 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)

Leptostomia 時速約 29 公里 (18 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

Leptostomia is known from only two beak fragments, one upper and one lower jaw.1

Its beak was flattened from top to bottom, which is different from any other known pterosaur.1 2

Scientists think Leptostomia used its beak like a kiwi bird or a curlew to probe for food in mud.1 2

Leptostomia lived about 100 to 94 million years ago, during the Cretaceous period.4

It was much smaller than many other pterosaurs that lived at the same time.1

The fossils were found in the Kem Kem Beds, which were once a river system with mangroves and tidal flats.1

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

?How big was Leptostomia?

Leptostomia was very small. Its complete skull was only about 6 to 20 centimeters (2.4 to 7.9 inches) long.1

?What did Leptostomia eat?

Leptostomia probably ate small invertebrates like worms, crabs, and molluscs. It used its long, flat beak to probe into mud, just like a kiwi bird does.1 3

?When did Leptostomia live?

Leptostomia lived during the Cretaceous period, about 100 to 94 million years ago.1

?Where was Leptostomia found?

Leptostomia fossils were found in Morocco, near the town of Hassi El Begaa. They came from the Kem Kem Beds, which were once a river system with mangroves and tidal flats.1

給恐龍專家

學名: Leptostomia
命名者: Smith et al. 20204
類群: 飛行爬蟲類
科 / 演化支: Azhdarchoidea4
分類: Pterosauria > Pterodactyloidea4
岩石的年代: 100 到 94 百萬年 (Cenomanian)4
岩層: Ifezouane4
國家: 摩洛哥4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Leptostomia was named in 2021 by paleontologists Roy E. Smith, David Martill, Alexander Kao, Samir Zouhri, and Nicholas Longrich. The fossils were found near the village of Hassi El Begaa in Morocco.1 2
仍有爭議: Scientists are not sure exactly which group of pterosaurs Leptostomia belongs to. It is probably an azhdarchoid, but it does not fit neatly into any known family.1 2