恐龍卡第 1422 張，共 2 027 張

Phosphorosaurus

名字的意思： “phosphate lizard”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Phosphorosaurus was a small marine lizard that lived in the late Cretaceous seas. It had huge eyes that helped it see in the dark, so it could hunt at night or in deep water. It was an ambush predator, waiting quietly for prey like squid and glowing fish.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

72 到 66 百萬年前3

白堊紀晚期

化石發現地

Belgium (Craie de Ciply Formation) and Japan (Hakobuchi Formation, Hokkaido)1 3

長度

2.5 到 3.5 m (8.2 到 11 ft)1

最高速度

時速約 36 公里（22 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 19 根香蕉頭尾相接一樣長能在 5 秒內游完一座大泳池（50 公尺）

Phosphorosaurus 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)

Phosphorosaurus 時速約 36 公里 (22 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

Phosphorosaurus had eyes that pointed forward, giving it binocular vision and depth perception, which is rare among mosasaurs.1

It was a small mosasaur, only about 2.5 to 3.5 metres long, much smaller than giants like Mosasaurus.1

The name Phosphorosaurus means 'phosphate lizard' because its fossils were found in phosphate-rich rocks in Belgium.1

Two species are known: Phosphorosaurus ortliebi from Belgium and Phosphorosaurus ponpetelegans from Japan.1

The Japanese species P. ponpetelegans was discovered in a clean creek called Pankerusano-sawa, and its name means 'elegant creek lizard'.1

Phosphorosaurus lived during the Maastrichtian age, about 72 to 66 million years ago, just before the dinosaurs went extinct.1 3

It was an ambush predator, not a fast swimmer, so it likely hid and waited for prey to come close.1

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

?How big was Phosphorosaurus?

About 3 metres (10 feet) long. That is small for a mosasaur, about the size of a small car.2

?Did Phosphorosaurus have binocular vision?

Yes. Its eyes pointed forward, giving it depth perception. This is rare among mosasaurs and helped it hunt in the dark.2

?What did Phosphorosaurus eat?

It likely ate squid and bioluminescent fish, like modern lanternfish. It was an ambush predator that waited for prey.1 2

?Where was Phosphorosaurus found?

Fossils have been found in Belgium and Japan. One species, P. ponpetelegans, was discovered in a creek in Hokkaido, Japan.1 2

給恐龍專家

學名: Phosphorosaurus
命名者: Dollo 18893
類群: 滄龍類
科 / 演化支: Mosasauridae3
分類: Mosasauroidea3
岩石的年代: 72 到 66 百萬年 (Maastrichtian)3
岩層: Mocuio, Craie de Ciply, Hakobuchi3
國家: 安哥拉, 比利時, 日本3
化石紀錄: The Paleobiology Database 收錄 3 筆3
發現: Belgian paleontologist Louis Dollo named Phosphorosaurus in 1889, based on a partial skull from the Craie de Ciply Formation in Belgium. The second species, P. ponpetelegans, was described in 2015 from a well-preserved skeleton found in Hokkaido, Japan.1
仍有爭議: Scientists are not sure if Phosphorosaurus ponpetelegans really belongs to this genus or if it should be placed in a new genus, as some studies suggest it is more closely related to Halisaurus.1