恐龍卡第 0249 張，共 2 027 張

Baryonyx

名字的意思： “heavy claw”1

吃：肉棘龍類白堊紀早期

Baryonyx was a big, fish-eating dinosaur with a long snout like a crocodile and a huge claw on each hand. It lived about 130 to 125 million years ago in what is now England and other parts of Europe. It was one of the first dinosaurs shown to eat fish!1

生存年代

139 到 110 百萬年前3

白堊紀早期

化石發現地

England (Surrey, Isle of Wight), Spain, Portugal, and Tunisia1 3

長度

7.5 到 10 m (25 到 33 ft)1

體重

1.2 公噸到 2 公噸 (2,600 到 4,400 lb)1

高度

2.5 m (8.2 ft)1

最高速度

時速約 26 公里（16 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 1.5 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長跟 100 隻狗一樣重跟 400 顆西瓜一樣重跟 2.5 整班小學生一樣重跟 4 隻北極熊一樣重能在 14 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Baryonyx 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)

Baryonyx 時速約 26 公里 (16 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

Baryonyx had a huge claw on its first finger, about 30 centimeters (12 inches) long, which it may have used to catch fish.1

Its snout was long and narrow, like a crocodile's, with many small, serrated teeth, perfect for gripping slippery fish.1

The first Baryonyx skeleton was found in 1983 in a clay pit in Surrey, England, by an amateur fossil collector named William Walker.1

Baryonyx was the first theropod dinosaur proven to eat fish, because fish scales were found in its stomach area.1

It lived in a warm, swampy environment with rivers and lakes, alongside other dinosaurs like Iguanodon and small sauropods.1

Some scientists think Baryonyx may have waded in water like a heron, using its long snout to snap up fish.1

Baryonyx also had a notch in its upper jaw, similar to a gharial, which helped it hold onto wriggling prey.1

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

?How big was Baryonyx?

About 7.5 to 10 metres (25 to 33 feet) long and weighed 1.2 to 2 metric tons (1.3 to 2.2 short tons).1 2

?What did Baryonyx eat?

It mainly ate fish, but also scavenged and ate young Iguanodon. Fish scales and bones were found in its stomach.1 2

?Did Baryonyx have feathers?

Nobody knows for sure. No feathers have been found with Baryonyx fossils, but some related dinosaurs may have had simple feathers.1

?Could Baryonyx swim?

It may have waded in shallow water and was probably a good swimmer, like a crocodile. It lived in a swampy environment.1 2

?Was Baryonyx bigger than T. rex?

No, Baryonyx was smaller. T. rex was about 12 metres (40 feet) long and weighed over 8 metric tons, while Baryonyx was up to 10 metres (33 feet) and 2 metric tons.1

?Why did Baryonyx have a big claw?

It used its 31-centimetre (12-inch) claw to catch fish and tear apart prey. The claw was on its thumb.1 2

?When did Baryonyx live?

It lived during the Early Cretaceous period, about 130 to 125 million years ago.1 2

?Where was Baryonyx found?

The first skeleton was found in 1983 in a clay pit in Surrey, England. Fossils have also been found in Spain.1 2

?Is Baryonyx a dinosaur?

Yes, Baryonyx is a theropod dinosaur. It is not a marine reptile or pterosaur.1 2

?How fast could Baryonyx run?

Scientists do not know its exact speed, but as a large theropod it probably ran at a moderate pace, maybe 25 to 40 km/h (15 to 25 mph).1

迷思破解王

迷思： Baryonyx was a slow, clumsy dinosaur that only ate fish.

真相： While it ate fish, Baryonyx was also an active predator and scavenger, and it could probably move well on land.1

給恐龍專家

學名: Baryonyx
命名者: Charig and Milner 19863
類群: 棘龍類
科 / 演化支: Spinosauridae3
分類: Theropoda > Spinosauridae3
岩石的年代: 139 到 110 百萬年 (Berriasian / Albian)3
岩層: Pinilla de los Moros, Weald Clay, Wessex3
國家: 西班牙, 英國, 葡萄牙, 突尼西亞3
化石紀錄: The Paleobiology Database 收錄 12 筆3
發現: The first Baryonyx skeleton was discovered in 1983 by amateur fossil collector William J. Walker in a clay pit in Surrey, England. It was named by Alan J. Charig and Angela C. Milner in 1986.1
仍有爭議: Scientists still debate whether Baryonyx mainly hunted fish or also scavenged on land, and whether some fossils from other places really belong to this genus.1