Eretmosaurus
Eretmosaurus was a plesiosaur, a long-necked marine reptile that swam in the seas during the Jurassic Period. It used four flippers to paddle through the water and catch fish and other prey.13
牠生活在什麼時候?
牠有多大?
牠有多長?
跟 5 隻狗從鼻子接到尾巴一樣長🍌跟 28 根香蕉頭尾相接一樣長🏊能在 6.4 秒內游完一座大泳池(50 公尺)Eretmosaurus 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?
趣味知識
Eretmosaurus lived during the Early and Middle Jurassic, about 199.5 to 161.5 million years ago.1
The first fossils of Eretmosaurus were originally named Plesiosaurus rugosus by Richard Owen in 1840.1
The name Eretmosaurus means 'oar lizard' because its flippers looked like oars.1
Two species are known: Eretmosaurus rugosus and Eretmosaurus dubius.1
A nearly complete skeleton of Eretmosaurus rugosus was found in Granby, Nottinghamshire, England.1
Scientists have argued about which group of plesiosaurs Eretmosaurus belongs to. It has been placed in Rhomaleosauridae, Pliosauridae, Elasmosauridae, and most recently Microcleididae.1

給恐龍專家
- 學名
- Eretmosaurus
- 命名者
- Seeley 18743
- 類群
- 蛇頸龍類
- 科 / 演化支
- Plesiosauria3
- 分類
- Plesiosauria > Sauropterygia3
- 岩石的年代
- 200 到 193 百萬年 (Sinemurian)3
- 國家
- 英國3
- 化石紀錄
- The Paleobiology Database 收錄 1 筆3
- 發現
- The first fossils were described by Richard Owen in 1840 as Plesiosaurus rugosus. Harry Seeley named the genus Eretmosaurus in 1874 based on a headless skeleton from Granby, England.1
- 仍有爭議
- Scientists are still unsure exactly which plesiosaur family Eretmosaurus belongs to, as it has been classified in several different groups over time.1
知識從哪裡來
- Eretmosaurus (en.wikipedia.org)
- Palaeos Vertebrates : Sauropterygia: Plesiosauroidea (2) (palaeos.com)
- Eretmosaurus in The Paleobiology Database (CC BY 4.0): 年代、地點、岩層、分類。
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