恐龍卡第 1956 張，共 2 027 張

Yaguarasaurus

名字的意思： “Yaguará lizard”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Yaguarasaurus was a big, swimming lizard that lived in the sea during the time of the dinosaurs. It was a mosasaur, not a dinosaur, and it hunted fish and other sea creatures with its long, toothy jaws.1 2

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

94 到 86 百萬年前2

白堊紀晚期

化石發現地

Colombia and Mexico1 2

長度

5 m (16 ft)1

最高速度

時速約 38 公里（24 英里）

游泳, 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 5 隻狗從鼻子接到尾巴一樣長跟 28 根香蕉頭尾相接一樣長能在 4.7 秒內游完一座大泳池（50 公尺）

Yaguarasaurus 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)

Yaguarasaurus 時速約 38 公里 (24 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

Yaguarasaurus lived about 90 million years ago during the Late Cretaceous period.1

The first fossils of Yaguarasaurus were found in a limestone bed near Yaguará, Colombia, in a place called Cueva Rica.1

The first skull of Yaguarasaurus was 47 centimeters (19 inches) long, but a later skull was 87 centimeters (34 inches) long, meaning some individuals were much bigger.1

Yaguarasaurus is one of the most complete mosasaurs ever found in South America.1

There are two known species of Yaguarasaurus: Y. columbianus from Colombia and Y. regiomontanus from Mexico.1 2

Scientists are not sure exactly how Yaguarasaurus is related to other mosasaurs. Some think it belongs to a group called Yaguarasaurinae, while others think it is a primitive plioplatecarpine.1

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

?How big was Yaguarasaurus?

About 5 metres (16 feet) long based on the first skull. A later, bigger skull suggests some individuals were larger.1

?What did Yaguarasaurus eat?

It was a marine lizard that hunted fish and other sea creatures with its long, toothy jaws.1

?Was Yaguarasaurus a dinosaur?

No, it was a mosasaur, a marine lizard, not a dinosaur.1

?Where was Yaguarasaurus found?

In a limestone bed near Yaguará, Colombia, in a place called Cueva Rica.1

給恐龍專家

學名: Yaguarasaurus
命名者: Páramo 19942
類群: 滄龍類
科 / 演化支: Mosasauridae2
分類: Mosasauroidea2
岩石的年代: 94 到 86 百萬年 (Turonian / Coniacian)2
岩層: Villeta, Agua Nueva2
國家: 哥倫比亞, 墨西哥2
化石紀錄: The Paleobiology Database 收錄 6 筆2
發現: Yaguarasaurus was named in 1994 by Colombian paleontologist María Páramo. The first fossils were an articulated skull, some vertebrae, and ribs found near Yaguará, Huila, Colombia.1 2
仍有爭議: Scientists still debate whether Yaguarasaurus belongs to its own subfamily Yaguarasaurinae or is a basal member of the Plioplatecarpinae.1