恐龍卡第 1212 張，共 2 027 張

Morosaurus

名字的意思： “stupid lizard”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Morosaurus was a huge, long-necked plant-eater that lived in what is now Portugal. It had a very small brain for its giant body, which is why its name means 'stupid lizard'. Scientists now think Morosaurus is actually the same as another dinosaur called Camarasaurus.1 2

生存年代

162 到 143 百萬年前4

侏羅紀晚期到白堊紀早期

化石發現地

Portugal4 2

長度

10 到 15 m (33 到 49 ft)1

高度

3.5 m (11 ft)

估計值

最高速度

時速約 16 公里（10 英里）

跑步, 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？

牠有多高？

估計值

跟 3 台汽車排成一排一樣長跟 83 根香蕉頭尾相接一樣長能在 22 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Morosaurus 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)

Morosaurus 時速約 16 公里 (10 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

Morosaurus was named by the famous fossil hunter Othniel Charles Marsh in 1878. He thought it was very sluggish because its brain was tiny compared to its body.1

The name Morosaurus comes from Greek words meaning 'stupid lizard'. Marsh wrote that its brain was 'proportionately smaller than in any known vertebrate'.1

Morosaurus is now considered a synonym of Camarasaurus, which means the two names refer to the same group of dinosaurs. Camarasaurus was named just one year earlier, so that name is used instead.1 4

Fossils of Morosaurus have been found in Portugal, in rocks that are about 152 to 149 million years old. That was during the Late Jurassic period.2

Like other sauropods, Morosaurus had a long neck and tail, a bulky body, and walked on four pillar-like legs. It probably lived in herds.2

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

?How big was Morosaurus?

Morosaurus is now considered the same as Camarasaurus. The most common species, Camarasaurus lentus, was about 15 metres (49 feet) long. A larger species, Camarasaurus supremus, was even bigger.3

?What did Morosaurus eat?

Morosaurus was a plant-eater. It had spoon-shaped teeth and strong jaws for chewing tough plants.3

?Is Morosaurus a dinosaur?

Yes, Morosaurus is a dinosaur. It is a type of sauropod, a long-necked, plant-eating dinosaur.1

?When did Morosaurus live?

Morosaurus lived during the Late Jurassic Period, about 155 to 145 million years ago.3

?Where was Morosaurus found?

Fossils of Morosaurus have been found in Portugal and in the western United States, in places like Wyoming and Colorado.1 3

?Was Morosaurus bigger than T. rex?

Yes, Morosaurus was much bigger than T. rex. The most common species was about 15 metres (49 feet) long, while T. rex was about 12 metres (40 feet) long.3

?Did Morosaurus have feathers?

No, Morosaurus did not have feathers. It was a sauropod with scaly skin.3

?How fast could Morosaurus run?

Probably up to about 16 km/h (10 mph), about as fast as a kid running fast. This is an estimate from its size. As a large, heavy sauropod it moved slowly, like an elephant.3

?What does the name Camarasaurus mean?

Camarasaurus means 'chambered lizard'. It refers to the hollow chambers in its neck and back bones.3

給恐龍專家

學名: Morosaurus
命名者: Marsh 18784
類群: 長脖子恐龍
科 / 演化支: Camarasauridae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 162 到 143 百萬年 (Oxfordian / Tithonian)4
岩層: Alcobaça4
國家: 葡萄牙4
化石紀錄: The Paleobiology Database 收錄 138 筆4
發現: Morosaurus was named by Othniel Charles Marsh in 1878 based on fossils from the Morrison Formation in the United States. Later, scientists realized it was the same as Camarasaurus, which had been named by Edward Drinker Cope in 1877.1 4
仍有爭議: Scientists are not sure if Morosaurus marchei from Portugal is truly a separate species or just a Camarasaurus. The fossils are very incomplete, only a tooth and a tail bone.1 2