恐龍卡第 0966 張，共 2 027 張

Khudiakovia

吃：肉魚龍類侏羅紀早期到白堊紀早期嚴格來說不是恐龍

Khudiakovia was a fast-swimming marine reptile that lived in the oceans during the Jurassic and Early Cretaceous periods. It had a huge eye, a long snout, and a body shaped like a dolphin. It was not a dinosaur, but a type of ichthyosaur.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

201 到 133 百萬年前5

侏羅紀早期到白堊紀早期

化石發現地

Russia (Saratov region)1

最高速度

時速約 46 公里（29 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)

Khudiakovia 時速約 46 公里 (29 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

Khudiakovia had an enormous eye, which helped it see in the dark ocean depths. The eye socket was very large compared to its skull.1

Its bones were made of hydroxyapatite, the same mineral that makes your teeth and bones hard.1

Khudiakovia gave birth to live young, just like whales and dolphins do today. It did not lay eggs.1

This ichthyosaur lived from about 201 million years ago to about 132 million years ago, a span of nearly 70 million years.1

Khudiakovia was a fast swimmer that moved through the water like a fish. Its body was built for speed.1

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

?How big was Khudiakovia?

Nobody knows for sure because no complete skeleton has been found. It was a medium-sized ichthyosaur, and related species like Ophthalmosaurus were about 4 metres (13 feet) long.2 5

?What did Khudiakovia eat?

It was a carnivore that ate fish and squid. Its conical teeth were good for catching slippery prey.3 4

?Could Khudiakovia swim fast?

Probably up to about 46 km/h (29 mph), as fast as a car driving in town! This is an estimate from its size. Its body was streamlined like a dolphin's, with a tail fluke for powerful strokes.3

?Did Khudiakovia have feathers?

No, it was a marine reptile, not a dinosaur. It had smooth skin and flippers, not feathers.3

?When did Khudiakovia live?

It lived during the Callovian age of the Jurassic Period, about 165 to 161 million years ago.5

?Was Khudiakovia a dinosaur?

No, it was an ichthyosaur, a type of marine reptile that lived in the sea. Ichthyosaurs are not dinosaurs.3

給恐龍專家

學名: Khudiakovia
命名者: Arkhangelsky 19995
類群: 魚龍類
科 / 演化支: Ophthalmosauridae5
分類: Ichthyosauria > Ichthyosauromorpha5
岩石的年代: 201 到 133 百萬年 (Hettangian / Valanginian)5
國家: 俄羅斯5
化石紀錄: The Paleobiology Database 收錄 27 筆5
發現: Khudiakovia was named by Russian paleontologist Arkhangelsky in 1999. The first fossils were found in the Saratov region of Russia.1
仍有爭議: Scientists are not sure if Khudiakovia is a valid genus. Some researchers think it might be the same animal as Ophthalmosaurus.1