恐龍卡第 1456 張，共 2 027 張

Pluridens

名字的意思： “many teeth”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Pluridens was a giant sea lizard that swam in the warm, shallow seas of West Africa near the end of the age of dinosaurs. It had a very long, slender jaw packed with lots of small teeth, perfect for catching slippery fish and squid.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

84 到 66 百萬年前4

白堊紀晚期

化石發現地

Niger, Nigeria, and Morocco1 4

長度

5 到 6 m (16 到 20 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 6 隻狗從鼻子接到尾巴一樣長跟 33 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）

Pluridens 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)

Pluridens 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

Pluridens had almost twice as many teeth as most other mosasaurs, with at least 28 teeth in each lower jaw bone.1

Its lower jaw was very slender and long, shaped almost like a circle in cross-section near the tip.1

Some Pluridens jaws show injuries that scientists think came from fighting over mates or territory.1

Pluridens lived during the very end of the Cretaceous Period, about 70 to 66 million years ago.1 4

The first Pluridens fossil was a nearly complete lower jaw found in Niger, Africa.1

Scientists think Pluridens may have fed like early ichthyosaurs, using its long jaws to snap up prey.1

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

?How big was Pluridens?

About 5 to 6 metres (16 to 20 feet) long, and some individuals may have been over 9 metres (30 feet).1

?What did Pluridens eat?

It ate small prey like fish and squid, using its many small, sharp teeth to grab them.2

?Did Pluridens have good eyesight?

No, it had small eyes and probably relied on touch and sensing water movements to hunt, like modern sea snakes.3 2

?When did Pluridens go extinct?

It died out about 66 million years ago, when the asteroid hit and wiped out most species on Earth.2

給恐龍專家

學名: Pluridens
命名者: Lingham-Soliar 19984
類群: 滄龍類
科 / 演化支: Mosasauridae4
分類: Mosasauroidea4
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)4
岩層: Couche III, Farin-Doutchi, Nkporo Shale4
國家: 摩洛哥, 尼日, 奈及利亞4
化石紀錄: The Paleobiology Database 收錄 4 筆4
發現: Pluridens was named by Theagarten Lingham-Soliar in 1998 based on a lower jaw from the Maastrichtian of Niger.1 4
仍有爭議: Scientists are not sure exactly how long Pluridens could grow, because only jaws and skulls have been found so far.1