恐龍卡第 0836 張，共 2 027 張

Hudsonelpidia

名字的意思： “Hudson's eyelid, named after the Hudson's Hope area in British Columbia”1

吃：肉魚龍類三疊紀晚期嚴格來說不是恐龍

Hudsonelpidia was a small, fast-swimming marine reptile that lived in the Late Triassic oceans. It looked a bit like a dolphin but was actually an ichthyosaur, not a dinosaur. It had a short snout and huge eyes to hunt in dim water.1 2

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

227 到 206 百萬年前2

三疊紀晚期

化石發現地

Canada, British Columbia1 2

長度

最多 2 m (6.6 ft)1

最高速度

時速約 41 公里（25 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 隻家貓從鼻子接到尾巴一樣長跟 11 根香蕉頭尾相接一樣長能在 4.4 秒內游完一座大泳池（50 公尺）

Hudsonelpidia 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)

Hudsonelpidia 時速約 41 公里 (25 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

Hudsonelpidia had very long, straight spines on its back vertebrae, which helped support a tall fin or ridge.1

Its front flipper bones (the zeugopodials) were much wider than long, while its back flipper bones were much longer than wide.1

This ichthyosaur had a short snout and very large eye sockets, suggesting it relied on good vision to hunt.1

Hudsonelpidia lived during the Norian age of the Late Triassic, about 227 to 205 million years ago.1

It was a small ichthyosaur, less than 2 metres (about 6.5 feet) long, making it one of the smaller members of its group.1

The name Hudsonelpidia means 'Hudson's eyelid', referring to the Hudson's Hope area in British Columbia where it was found.1

Hudsonelpidia 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Hudsonelpidia 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。

給恐龍專家

學名: Hudsonelpidia
命名者: McGowan 19952
類群: 魚龍類
科 / 演化支: Parvipelvia2
分類: Ichthyosauria > Ichthyosauromorpha2
岩石的年代: 227 到 206 百萬年 (Norian)2
國家: 加拿大2
化石紀錄: The Paleobiology Database 收錄 2 筆2
發現: Hudsonelpidia was named by paleontologist Chris McGowan in 1995, based on fossils found in British Columbia, Canada.1
仍有爭議: Scientists are not sure exactly how Hudsonelpidia is related to other ichthyosaurs, as different studies place it in different families.1