恐龍卡第 1834 張，共 2 027 張

Tropeognathus

名字的意思： “keel jaw”4

吃：魚飛行爬蟲類白堊紀早期嚴格來說不是恐龍

Tropeognathus was a giant flying reptile that soared over ancient seas. It had a big crest on its snout and a mouth full of teeth for catching fish.4 1

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

120 到 113 百萬年前4

白堊紀早期

化石發現地

Romualdo Formation, Araripe Basin, northeastern Brazil4 1

翼展

8.26 到 8.7 m (27 到 29 ft)1

最高速度

時速約 86 公里（53 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？

牠的翅膀有多寬？

翅膀跟 5 台腳踏車排成一排一樣寬能在 4.4 秒內飛越一整座足球場

Tropeognathus 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)

一匹飛奔的馬 時速約 65 公里 (40 mph)

Tropeognathus 時速約 86 公里 (53 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Tropeognathus is one of the largest pterosaurs ever found in the southern continents (Gondwana).1

A huge specimen (MN 6594-V) had a wingspan of about 8.26 to 8.7 metres, as wide as a small airplane.1

It lived during the Early Cretaceous, about 119 to 113 million years ago.2

Tropeognathus had a low, blunt crest on the top of its skull, unlike some other pterosaurs with tall crests.1

Its name means 'keel jaw', because of the ridge on its lower jaw that looks like a boat's keel.4

The first fossil of Tropeognathus was a skull and lower jaw found in Brazil.4

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

?How big was Tropeognathus?

Tropeognathus had a wingspan of about 8.26 to 8.7 metres (27.1 to 28.5 feet), about as wide as a small airplane.3 1

?Was Tropeognathus a dinosaur?

No, Tropeognathus was a pterosaur, a flying reptile, not a dinosaur. Pterosaurs are a separate group of reptiles that lived alongside dinosaurs.3

?What did Tropeognathus eat?

Tropeognathus ate fish, which it caught with its long jaws full of teeth while flying over ancient seas.3

?Could Tropeognathus fly?

Yes, Tropeognathus could fly. It was a flying reptile with a wingspan of about 8.5 metres (28 feet), making it one of the largest flying animals of its time.3

?Why did Tropeognathus have a crest?

Tropeognathus had a crest on its snout and a smaller one on its lower jaw, likely used for display, especially in males, and possibly for species recognition.3

?When did Tropeognathus live?

Tropeognathus lived during the Early Cretaceous, about 119 to 113 million years ago.3

?Where was Tropeognathus found?

Fossils of Tropeognathus were found in the Romualdo Formation in northeastern Brazil, in South America.3

?Was Tropeognathus bigger than a T. rex?

No, Tropeognathus was a flying reptile, not a dinosaur, and it was much smaller than a T. rex. T. rex was about 12 metres long, while Tropeognathus had a wingspan of about 8.5 metres (28 feet).3

給恐龍專家

學名: Tropeognathus
命名者: Wellnhofer 19874
類群: 飛行爬蟲類
科 / 演化支: Anhangueridae4
分類: Pterosauria > Pterodactyloidea4
岩石的年代: 120 到 113 百萬年 (Aptian)4
岩層: Romualdo4
國家: 巴西4
化石紀錄: The Paleobiology Database 收錄 2 筆4
發現: Tropeognathus was named by Peter Wellnhofer in 1987 based on a skull and lower jaw from the Romualdo Formation in Brazil.4
仍有爭議: Scientists are not sure if some very large pterosaur bones from the same area belong to Tropeognathus or to a different, even bigger species.1