恐龍卡第 1145 張，共 2 027 張

Masiakasaurus

名字的意思： “vicious lizard”1

吃：肉肉食恐龍白堊紀晚期

Masiakasaurus was a small, meat-eating dinosaur with a very strange smile. Its front teeth stuck out forward like a set of spoons, perfect for grabbing slippery fish and other tiny animals. It lived on the island of Madagascar near the end of the age of dinosaurs.1

生存年代

72 到 66 百萬年前3

白堊紀晚期

化石發現地

Madagascar (Mahajanga province)2 1

長度

1.8 到 2.1 m (5.9 到 6.9 ft)1

體重

20 kg (44 lb)1

高度

0.71 m (2.3 ft)

估計值

最高速度

時速約 43 公里（27 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

牠有多重？

跟 5 隻家貓一樣重

跟 4 隻家貓從鼻子接到尾巴一樣長跟 12 根香蕉頭尾相接一樣長跟 4 顆西瓜一樣重能在 8.4 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Masiakasaurus 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)

Masiakasaurus 時速約 43 公里 (27 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

Masiakasaurus had forward-pointing front teeth, unlike most meat-eating dinosaurs. The first tooth in its lower jaw was angled only 10 degrees above horizontal.1

Its name comes from the Malagasy word 'masiaka', meaning 'vicious'. The species name 'knopfleri' honors musician Mark Knopfler, whose music inspired the expedition team.1

Masiakasaurus lived alongside the giant predator Majungasaurus and the long-necked Rapetosaurus in Madagascar.1

Scientists have found about 65% of the Masiakasaurus skeleton, making it one of the best-known noasaurid dinosaurs.1

A shoulder bone of one Masiakasaurus has holes that might be bite marks from Majungasaurus or from an infection.1

Masiakasaurus was a small theropod, only about 1.8 to 2.1 meters (5.9 to 6.9 feet) long and weighing around 20 kilograms (44 pounds).1

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

?How big was Masiakasaurus?

About 1.8 to 2.1 metres long and weighed around 20 kilograms. That is about the size of a large dog.1

?What did Masiakasaurus eat?

It probably ate fish and other small prey. Its forward-pointing front teeth were good for grabbing slippery animals.1

?When did Masiakasaurus live?

It lived during the Late Cretaceous period, from about 72.1 to 66 million years ago.1

?Where was Masiakasaurus found?

Its fossils were found in the Maevarano Formation in northwestern Madagascar, near the village of Berivotra.1

?Did Masiakasaurus have feathers?

The sources do not mention feathers for Masiakasaurus. It is not known for sure.1

?Was Masiakasaurus a dinosaur?

Yes, it was a small predatory theropod dinosaur.1

給恐龍專家

學名: Masiakasaurus
命名者: Sampson et al. 20013
類群: 肉食恐龍
科 / 演化支: Noasauridae3
分類: Theropoda > Ceratosauria3
岩石的年代: 72 到 66 百萬年 (Maastrichtian)3
岩層: Maevarano3
國家: 馬達加斯加3
化石紀錄: The Paleobiology Database 收錄 29 筆3
發現: Masiakasaurus was named in 2001 by Scott Sampson, Matthew Carrano, and Catherine Forster. The first fossils were found near the village of Berivotra in Madagascar and described in the journal Nature.1
仍有爭議: Scientists still debate exactly how Masiakasaurus is related to other noasaurids, even with lots of new fossil material.1