恐龍卡第 0108 張，共 2 027 張

Angolasaurus

名字的意思： “Angola lizard”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Angolasaurus was a marine lizard that swam in the warm seas of the Late Cretaceous. It was a small mosasaur, about 4 meters long, with a long skull and a tail fluke for fast swimming.1

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

90 到 66 百萬年前3

白堊紀晚期

化石發現地

Angola, and possibly the United States (Texas), Brazil, and Niger1

長度

4 m (13 ft)1

最高速度

時速約 37 公里（23 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 4 隻狗從鼻子接到尾巴一樣長跟 22 根香蕉頭尾相接一樣長能在 4.9 秒內游完一座大泳池（50 公尺）

Angolasaurus 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)

Angolasaurus 時速約 37 公里 (23 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

Angolasaurus was one of the few Turonian mosasaurs found on both sides of the Atlantic Ocean, showing it could cross the sea.1

Its skull had 11 teeth in the upper jaw, 4 in the front, and 12 in the lower jaw.1

Scientists think Angolasaurus had a tail fluke, like a shark, for powerful swimming.1

Its body was covered in keeled scales that helped it move smoothly through water.1

Because the seas it lived in were cooling, Angolasaurus may have had dark patterns on its back to soak up heat from the sun.1

Angolasaurus shared its home in Angola with the giant mosasaur Tylosaurus and a turtle called Angolachelys.1

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

?Was Angolasaurus a dinosaur?

No, it was a marine lizard called a mosasaur, not a dinosaur. It lived in the sea during the time of the dinosaurs.1

?How big was Angolasaurus?

About 4 meters long, with a skull about 40 centimeters long. It was a small mosasaur.1

?What did Angolasaurus eat?

Scientists do not know exactly, but as a mosasaur it likely ate fish and other sea creatures. Its teeth suggest it was a predator.1

?Where did Angolasaurus live?

It lived in the warm seas of Angola, and also possibly in what is now the United States, Brazil, and Niger. It could cross the Atlantic Ocean.1

給恐龍專家

學名: Angolasaurus
命名者: 不明3
類群: 滄龍類
科 / 演化支: Mosasauridae3
分類: Mosasauroidea3
岩石的年代: 90 到 66 百萬年 (Coniacian / Maastrichtian)3
岩層: Itombe, Dukamaje3
國家: 安哥拉, 尼日3
化石紀錄: The Paleobiology Database 收錄 3 筆3
發現: Angolasaurus was first named in 1964 by Miguel Telles Antunes, based on a partial skull and skeleton found in Angola. It was later thought to be a species of Platecarpus, but new studies in 2005 showed it was a separate genus.1
仍有爭議: Scientists are still debating exactly where Angolasaurus fits in the mosasaur family tree, with some studies placing it as a basal plioplatecarpine.1