恐龍卡第 1776 張，共 2 027 張

Tethysaurus

名字的意思： “Tethys' lizard of Nopcsa”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Tethysaurus was a marine lizard that swam in warm seas about 90 million years ago. It was not a dinosaur, but a fierce predator that hunted fish and other sea creatures.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

94 到 90 百萬年前3

白堊紀晚期

化石發現地

Goulmima region, Errachidia Province, southern Morocco1 2

長度

2.5 到 3 m (8.2 到 9.8 ft)1

最高速度

時速約 33 公里（21 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 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能在 5.5 秒內游完一座大泳池（50 公尺）

Tethysaurus 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)

Tethysaurus 時速約 33 公里 (21 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

Tethysaurus was a medium-sized mosasaur, less than 3 meters (9.8 feet) long.1

Its name comes from Tethys, the Greek goddess of the sea, and honors Hungarian paleontologist Baron Ferenc Nopcsa.1

Tethysaurus had a skull with a broad, rounded snout and two pairs of teeth in the premaxilla.2

It had 19 to 20 teeth in each upper jaw bone (maxilla) and at least 19 teeth in each lower jaw bone (dentary).2

Scientists think Tethysaurus was an early relative of later, bigger mosasaurs like Mosasaurus.1

Its fossils were found in limestone nodules that formed in a shallow, warm sea.2

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

?Was Tethysaurus a dinosaur?

No, Tethysaurus was a marine lizard called a mosasaur, not a dinosaur.1

?How big was Tethysaurus?

Tethysaurus was under 3 metres (9.8 feet) long, about as long as a small car.1

?What did Tethysaurus eat?

Tethysaurus was a predator that hunted fish and other sea creatures.1

?When did Tethysaurus live?

Tethysaurus lived during the Late Cretaceous period, about 93 to 89 million years ago.3

給恐龍專家

學名: Tethysaurus
命名者: Bardet et al. 20033
類群: 滄龍類
科 / 演化支: Tethysaurinae3
分類: Mosasauroidea3
岩石的年代: 94 到 90 百萬年 (Turonian)3
岩層: Akrabou3
國家: 摩洛哥3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Tethysaurus was named in 2003 by Nathalie Bardet, Xabier Pereda Suberbiola, and Nour-Eddine Jalil, based on a nearly complete skull and other bones found near Goulmima, Morocco.2
仍有爭議: Scientists are still debating exactly how Tethysaurus is related to other mosasaurs and whether it belongs in the family Mosasauridae or is a more primitive cousin.1