恐龍卡第 0352 張，共 2 027 張

Cartorhynchus

名字的意思： “short snout”1

吃：魚魚龍類三疊紀早期到三疊紀中期嚴格來說不是恐龍

Cartorhynchus was a tiny, early marine reptile that lived about 248 million years ago. It had a short snout and big flippers, and scientists think it could walk a little on land, like a seal!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

249 到 247 百萬年前5

三疊紀早期到三疊紀中期

化石發現地

Anhui Province, China2

長度

0.4 m (1.3 ft)3 1

體重

0.237 kg 到 2 kg (1 到 4 lb)3

最高速度

時速約 10 公里（6 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？

牠有多重？

跟 17 根香蕉一樣重

跟 2 根香蕉頭尾相接一樣長大約跟一隻家貓一樣重跟 17 根香蕉一樣重跟 12 塊積木排成一排一樣長能在 18 秒內游完一座大泳池（50 公尺）

Cartorhynchus 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)

Cartorhynchus 時速約 10 公里 (6 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 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

Cartorhynchus is one of the oldest known ichthyosauriforms, a group that includes ichthyosaurs.1

It had a very short snout, only half the length of the rest of its skull.2

Its flippers were unusually large and curved, which might have helped it move on land.1

The only fossil found is a nearly complete skeleton, stored at the Anhui Geological Museum.2

It lived during the Early Triassic period, about 248 million years ago, in a warm tropical sea.1

Cartorhynchus had a very large hyoid bone in its throat, which helped it suck in food.2

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

?How big was Cartorhynchus?

About 40 centimetres long, which is about the size of a small lizard. It weighed around 2 kilograms.3

?Could Cartorhynchus walk on land?

Yes, scientists think it could walk a little on land, like a seal. Its large, flexible flippers and short body helped it move on land.3 1

?What did Cartorhynchus eat?

It ate hard-shelled animals like shrimp, using suction feeding to vacuum them up. It had special molar-like teeth inside its jaws to crush them.3 4

?When did Cartorhynchus live?

It lived about 248 million years ago, during the Early Triassic period, soon after the big Permian-Triassic extinction.3

給恐龍專家

學名: Cartorhynchus
命名者: Motani et al. 20155
類群: 魚龍類
科 / 演化支: Omphalosauridae5
分類: Ichthyosauromorpha5
岩石的年代: 249 到 247 百萬年 ()5
岩層: Nanlinghu5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Cartorhynchus was named by Ryosuke Motani and colleagues in 2015, based on a fossil found in a quarry in Anhui, China.5
仍有爭議: Scientists are not sure if Cartorhynchus could really walk on land, or if it spent all its time in the water.1