恐龍卡第 1979 張，共 2 027 張

Ypupiara

名字的意思： “the one who lives in the water”1

吃：魚迅猛龍類白堊紀晚期

Ypupiara was a small, fast raptor that lived in Brazil near the end of the age of dinosaurs. It had long, skinny teeth like a fish hook, perfect for catching slippery fish for dinner.1 2

生存年代

72 到 66 百萬年前5

白堊紀晚期

化石發現地

Serra da Galga Formation, Brazil5 1

長度

3 m (9.8 ft)3

體重

20 kg (44 lb)3

高度

1.2 m (3.9 ft)3

最高速度

時速約 43 公里（27 英里）

跑步, 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？

牠有多高？

牠有多重？

跟 5 隻家貓一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 4 顆西瓜一樣重能在 8.4 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Ypupiara 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)

Ypupiara 時速約 43 公里 (27 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

Ypupiara was the first dromaeosaurid (raptor) dinosaur ever discovered in South America.1

Its only known fossil was a piece of upper jaw and lower jaw, which was destroyed in a fire at the National Museum of Brazil in 2018.1

Scientists only described and named Ypupiara in 2021, using photographs taken just before the fire.1

Ypupiara's teeth were fluted (had grooves) and lacked serrations, which is unusual for a raptor.2

Its closest relative was Austroraptor, another fish-eating raptor from Argentina.1 2

The name Ypupiara comes from a Tupi word meaning 'the one who lives in the water', referring to a local water spirit.1

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

?How big was Ypupiara?

It was about 2 to 3 metres (6.6 to 9.8 feet) long from the tip of its nose to the end of its tail.4

?What did Ypupiara eat?

It mostly ate fish, using its long, skinny, hook-like teeth to catch them. It may also have eaten lizards and small amphibians.1 4

?When did Ypupiara live?

It lived near the end of the age of dinosaurs, between about 72 million and 66 million years ago.4

迷思破解王

迷思： Ypupiara was a giant raptor like Velociraptor from the movies.

真相： Ypupiara was a small, slender unenlagiine raptor, probably about the size of a turkey or a large dog, and it ate fish, not large prey.1 2

給恐龍專家

學名: Ypupiara
命名者: Brum et al. 20215
類群: 迅猛龍類
科 / 演化支: Dromaeosauridae5
分類: Theropoda > Dromaeosauridae5
岩石的年代: 72 到 66 百萬年 (Maastrichtian)5
岩層: Serra da Galga5
國家: 巴西5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: The fossil was found by Alberto Lopa in the 1950s in Brazil. It was stored at the National Museum of Brazil and only described as a new dinosaur in 2021 by Arthur Brum and colleagues, after the original specimen was lost in a fire.1
仍有爭議: Scientists are not sure if another fossil called 'Lopasaurus' (a foot bone) belongs to the same species as Ypupiara, because the two fossils don't overlap in body parts.1