恐龍卡第 1524 張，共 2 027 張

Quasianosteosaurus

名字的意思： “almost boneless lizard”1

吃：肉魚龍類三疊紀早期到三疊紀中期嚴格來說不是恐龍

Quasianosteosaurus was an ancient marine reptile that swam in the seas long before dinosaurs ruled the land. It had a huge skull, almost 50 centimetres long, making it one of the biggest early ichthyosaurs known.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

249 到 247 百萬年前4

三疊紀早期到三疊紀中期

化石發現地

Mount Viking, Spitsbergen, Svalbard archipelago, Norway1

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)

Quasianosteosaurus 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

Quasianosteosaurus is known from only one partial skull, which is mostly a natural cast with very little original bone left.1

Its name means 'almost boneless lizard' because the fossil skull is almost just an impression in the rock.1

This ichthyosaur lived about 248 to 247 million years ago, during the Early Triassic period.3

The skull of Quasianosteosaurus is the largest Early Triassic ichthyosaur skull ever found, measuring about 50 centimetres (20 inches) long.1 2

It was a close relative of other early ichthyosaurs like Parvinatator, but different enough to be placed in its own family, Quasianosteosauridae.1 2

The fossil was found in the Sticky Keep Formation on Mount Viking in Spitsbergen, Norway.1

Early Triassic ichthyosaurs like Quasianosteosaurus show that these marine reptiles evolved and diversified very quickly after the great Permian extinction.2

Quasianosteosaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Quasianosteosaurus 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: Quasianosteosaurus
命名者: Maisch and Matzke 20034
類群: 魚龍類
科 / 演化支: Quasianosteosauridae4
分類: Ichthyosauria > Ichthyosauromorpha4
岩石的年代: 249 到 247 百萬年 ()4
岩層: Sticky Keep4
國家: 斯瓦巴4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Quasianosteosaurus was named by Michael Werner Maisch and Andreas Theodor Matzke in 2003, based on a partial skull found on Mount Viking in Spitsbergen, Norway.1
仍有爭議: Scientists are not sure exactly how big the whole animal was, because only its skull has been found.1