恐龍卡第 1499 張，共 2 027 張

Pterodaustro

名字的意思： “wing from the south”1

吃：魚飛行爬蟲類白堊紀早期嚴格來說不是恐龍

Pterodaustro was a flying reptile that lived near lakes in what is now Argentina. It had a weird mouth with about 1,000 long, bristle-like teeth in its lower jaw, just like a comb! It used those teeth to strain tiny shrimp and other small animals from the water, just like flamingos do today.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

121 到 100 百萬年前5

白堊紀早期

化石發現地

Argentina (San Luis Province) and possibly Chile, but the Chilean fossils turned out to belong to another pterosaur.1 3

翼展

最多 3 m (9.8 ft)1

體重

最多 9.2 kg (20 lb)1

最高速度

時速約 56 公里（35 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？

牠有多重？

跟 2.5 隻家貓一樣重

翅膀跟 1.5 台腳踏車排成一排一樣寬跟 77 根香蕉一樣重能在 6.8 秒內飛越一整座足球場

Pterodaustro 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)

Pterodaustro 時速約 56 公里 (35 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

Pterodaustro had about 1,000 teeth in its lower jaw, each only 0.2 to 0.3 millimeters wide. That's thinner than a human hair!1 2

Scientists have found over 750 fossils of Pterodaustro, including eggs and embryos, making it one of the best-known pterosaurs.1

Pterodaustro had a long tail with 22 vertebrae, which is unusual for a pterodactyloid pterosaur. Most others have at most 16.1

Two Pterodaustro fossils were found with gizzard stones in their stomachs. These are the first gizzard stones ever reported for any pterosaur.1

Pterodaustro may have been pink like a flamingo! Its diet of tiny crustaceans could have given it a pink color, just like flamingos get from eating brine shrimp.1 2

Pterodaustro had a hard time taking off from the ground. Because of its long body and short legs, it needed a lot of open space to launch, like modern geese and swans.1

Juvenile Pterodaustro grew quickly in their first two years, reaching about half of adult size. They then grew more slowly for four to five years until they were fully grown.1

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

?How big was Pterodaustro?

It had a wingspan of about 3 metres (9 ft 10 in) and weighed about 9.2 kilograms (20 lb).1

?Is Pterodaustro a dinosaur?

No, it is a pterosaur, which is a flying reptile, not a dinosaur.1 4

?What did Pterodaustro eat?

It ate tiny shrimp, crustaceans, and other small water animals. It used its comb-like teeth to strain them from the water, just like flamingos do.2 1 4

?Could Pterodaustro swim?

Yes, it had a long body and large, splayed feet that were adaptations for swimming and wading in lakes.1

?Why did Pterodaustro have so many teeth?

Its lower jaw had about 1,000 long, bristle-like teeth that formed a comb. This comb helped it filter tiny animals like shrimp out of the water.2 1 4

?Was Pterodaustro pink?

Maybe. Scientists think it could have been pinkish just like flamingos, because its diet of brine shrimp might have given it that color.2 1

迷思破解王

迷思： Pterodaustro was a dinosaur.

真相： Pterodaustro was a pterosaur, a flying reptile that lived at the same time as dinosaurs but is not a dinosaur.1

給恐龍專家

學名: Pterodaustro
命名者: Bonaparte 19705
類群: 飛行爬蟲類
科 / 演化支: Lophocratia5
分類: Pterosauria > Pterodactyloidea5
岩石的年代: 121 到 100 百萬年 (Aptian / Albian)5
岩層: Lagarcito, La Cruz5
國家: 阿根廷5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: The first fossils of Pterodaustro were discovered in the late 1960s by paleontologist José Bonaparte in the Lagarcito Formation of San Luis Province, Argentina. Bonaparte named the genus in 1970, with the species name P. guinazui honoring Román Guiñazú.1
仍有爭議: Scientists are still debating whether Pterodaustro was actually pink like a flamingo. While its diet suggests it could have been, no direct fossil evidence of color has been found.1 2