恐龍卡第 1885 張，共 2 027 張

Velafrons

名字的意思： “sailed forehead”1

吃：植物鴨嘴龍類白堊紀晚期

Velafrons was a duck-billed dinosaur that lived in Mexico about 73 million years ago. It had a bony crest on its forehead like a little sail. The only skeleton we have is from a youngster, so grown-ups might have been much bigger!1

生存年代

84 到 72 百萬年前3

白堊紀晚期

化石發現地

Coahuila, Mexico1 3

長度

最多 7.5 m (25 ft)1

體重

最多 2.5 公噸 (5,500 lb)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？

牠有多重？

跟 1.5 台汽車一樣重

跟 8 隻狗從鼻子接到尾巴一樣長跟 42 根香蕉頭尾相接一樣長跟 120 隻狗一樣重跟 500 顆西瓜一樣重跟 3 整班小學生一樣重跟 6 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）

Velafrons 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)

Velafrons 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

Velafrons is the first new lambeosaurine dinosaur from North America to be named in over 70 years.1

The only known skeleton is from a juvenile, and it is about 60% the size of a full-grown Corythosaurus. So adult Velafrons may have been much larger than the 7.5-metre specimen we found.1

Its skull is big compared to other duck-billed dinosaurs of the same age. This might mean adult Velafrons were also larger than their relatives.1

Velafrons lived in a warm, coastal environment near an ancient sea, in what is now the desert of Coahuila.1

The fossils were found in a grey mudstone that formed from mud at the bottom of an estuary or bay.2

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

?How big was Velafrons?

Velafrons was a medium-sized hadrosaur, measuring about 7.5 metres (25 ft) long and weighing around 2.5 metric tons (2.8 short tons). Since the only known skeleton is from a juvenile, adults might have been much bigger.1

?What did Velafrons eat?

Velafrons was a herbivore, meaning it ate plants. As a hadrosaurid, it would have eaten vegetation.1 3

?Why did Velafrons have a crest?

Velafrons had a bony crest on its forehead, which is why its name means 'sailed forehead'. Scientists think the crest might have been used for display, but they are not sure exactly what for.1

?When did Velafrons live?

Velafrons lived about 73.5 million years ago, during the Late Cretaceous period. Its fossils were found in the Cerro del Pueblo Formation in Mexico.1

給恐龍專家

學名: Velafrons
命名者: Gates et al. 20073
類群: 鴨嘴龍類
科 / 演化支: Hadrosauridae3
分類: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae3
岩石的年代: 84 到 72 百萬年 (Campanian)3
岩層: Cerro del Pueblo3
國家: 墨西哥3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: The first Velafrons skeleton was found in 2002 during an excavation by the Utah Museum of Natural History, Royal Tyrrell Museum and Museo del Desierto. It was named by Terry Gates and colleagues in 2007.1
仍有爭議: Scientists are not sure how big adult Velafrons grew, because only a youngster has been found. The crest on its forehead might have grown bigger or changed shape as it aged.1