恐龍卡第 1159 張，共 2 027 張

Megaraptor

名字的意思： “large thief”1

吃：肉肉食恐龍白堊紀晚期

Megaraptor was a big, meat-eating dinosaur with huge claws on its hands. It lived in what is now Argentina, about 90 to 88 million years ago. Scientists once thought the big claw was on its foot, but later found out it was on its hand!1

生存年代

94 到 86 百萬年前3

白堊紀晚期

化石發現地

Portezuelo Formation, Neuquén, Patagonia, Argentina1 3

長度

8 m (26 ft)1

體重

1 公噸 (2,200 lb)1

高度

2.35 m (7.7 ft)1

最高速度

時速約 36 公里（22 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？

牠有多重？

跟 50 隻狗一樣重

跟 8 隻狗從鼻子接到尾巴一樣長跟 44 根香蕉頭尾相接一樣長跟 200 顆西瓜一樣重跟 53 個幼兒園小朋友一樣重跟 31 個小學生一樣重跟 2 隻北極熊一樣重能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Megaraptor 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)

Megaraptor 時速約 36 公里 (22 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

The claw on Megaraptor's first finger was 35 cm (14 inches) long, and it was probably covered in a sharp keratin sheath, making it even longer.1

Megaraptor had different kinds of teeth: small and conical at the front of its jaws, and longer, more curved teeth at the back.1

Its arms were very strong, with large muscle attachment points on the upper arm bones.1

Megaraptor lived alongside other dinosaurs like the long-necked Futalognkosaurus and the meat-eating Unenlagia.1

The first Megaraptor fossils were found in 1996 by paleontologist Fernando Novas.1

Scientists are still debating whether Megaraptor was a type of allosauroid or a close relative of tyrannosaurs.1

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

?How big was Megaraptor?

Megaraptor was about 8 metres (26 feet) long and weighed around 1 tonne (2,200 pounds). That is about as long as a school bus and as heavy as a small car.1 2

?What did Megaraptor eat?

Megaraptor was a meat-eater, and it probably used its big hand claws to grab prey and pull it close to its mouth. It may have hunted small dinosaurs and other animals.1

?Did Megaraptor have feathers?

The sources don't say for sure, but since it's a theropod dinosaur, some related species had feathers. However, no feather fossils of Megaraptor have been found.1

?Why did Megaraptor have such big claws?

Megaraptor's huge hand claws, especially the 35 cm (14 in) claw on its first finger, were probably used to grab and hold prey. They might also have been used for slashing or defense.1

?Was Megaraptor bigger than T. rex?

No, Megaraptor was much smaller than Tyrannosaurus rex. Megaraptor was about 8 metres (26 feet) long, while T. rex could be over 12 metres (40 feet) long.1

?Could Megaraptor swim?

The sources don't mention swimming, but Megaraptor lived near rivers, so it might have been able to cross water. However, there's no direct evidence.1

?When did Megaraptor live?

Megaraptor lived about 90 to 88 million years ago, during the Late Cretaceous period. That is a long time before the dinosaurs went extinct.1

?Is Megaraptor a dinosaur?

Yes, Megaraptor is a dinosaur. It's a theropod, which means it's a meat-eating dinosaur that walked on two legs.1

迷思破解王

迷思： Megaraptor was a giant dromaeosaur, like a huge Velociraptor.

真相： The big claw was first thought to be on its foot, but later fossils showed it was on its hand. Megaraptor is now considered a megaraptoran, not a dromaeosaur.1

給恐龍專家

學名: Megaraptor
命名者: Novas 19983
類群: 肉食恐龍
科 / 演化支: Megaraptoridae3
分類: Theropoda > Megaraptora3
岩石的年代: 94 到 86 百萬年 (Turonian / Coniacian)3
岩層: Portezuelo3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 3 筆3
發現: Megaraptor was named in 1998 by Argentine paleontologist Fernando Novas, based on a partial skeleton found in the Portezuelo Formation of Argentina in 1996.1 3
仍有爭議: Scientists are not sure whether Megaraptor belongs with the allosauroids or is a close cousin of the tyrannosaurs.1