恐龍卡第 0448 張，共 2 027 張

Corosaurus

名字的意思： “Corosaurus means 'Alcova lizard' after the Alcova Limestone where it was found”1

吃：肉海生爬蟲類三疊紀早期到三疊紀中期嚴格來說不是恐龍

Corosaurus was an ancient marine reptile that swam in the seas of Wyoming during the Early Triassic, about 247 million years ago. It looked a bit like a long-bodied lizard with flippers and was a fierce hunter of small 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

249 到 247 百萬年前3

三疊紀早期到三疊紀中期

化石發現地

Wyoming, USA, specifically Jackson Canyon in Natrona County1

長度

1.65 到 4 m (5.4 到 13 ft)1

最高速度

時速約 24 公里（15 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 7.5 秒內游完一座大泳池（50 公尺）

Corosaurus 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)

Corosaurus 時速約 24 公里 (15 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

Corosaurus is a close relative of plesiosaurs, the long-necked marine reptiles that lived later in the dinosaur age.2

The first Corosaurus fossil was found in the Alcova Limestone Formation in Wyoming and named by paleontologist Ermine Cowles Case in 1936.1

Corosaurus lived during the Early Triassic, just a few million years after the biggest mass extinction in Earth's history.1

Scientists think Corosaurus was a planktonic suspension feeder, meaning it may have filtered tiny floating organisms from the water.3

The largest Corosaurus individuals could grow over 4 meters (13 feet) long, about as long as a small car.1

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

?How big was Corosaurus?

Corosaurus ranged from about 1.65 meters (5.4 feet) for the holotype to over 4 meters (13 feet) for larger individuals, about as long as a small car.1

?When did Corosaurus live?

Corosaurus lived during the Early Triassic, about 247.4 to 245 million years ago, in what is now Wyoming, United States.1

?Is Corosaurus a dinosaur?

No, Corosaurus is a marine reptile called a pistosauroid, not a dinosaur. It is a close relative of plesiosaurs, which lived later.1

給恐龍專家

學名: Corosaurus
命名者: Case 19363
類群: 海生爬蟲類
科 / 演化支: Eosauropterygia3
分類: Sauropterygia3
岩石的年代: 249 到 247 百萬年 ()3
岩層: Crow Mountain3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 4 筆3
發現: Corosaurus was first named by Ermine Cowles Case in 1936 based on a partial skeleton found in the Alcova Limestone of Wyoming. The species name alcovensis comes from the rock formation where it was discovered.1
仍有爭議: Scientists are still debating exactly how Corosaurus is related to other marine reptiles like plesiosaurs and whether it was a filter feeder or a predator of larger prey.3 2