恐龍卡第 0844 張，共 2 027 張

Hypacrosaurus

名字的意思： “near the highest lizard”1

吃：植物鴨嘴龍類白堊紀晚期

Hypacrosaurus was a big duck-billed dinosaur with a tall, hollow crest on its head. It lived in herds and ate plants, using its wide beak to crop leaves and branches.1

生存年代

84 到 66 百萬年前4

白堊紀晚期

化石發現地

Alberta, Canada, and Montana, USA1 2

長度

最多 9.1 m (30 ft)1

體重

最多 4 公噸 (8,800 lb)1

高度

最多 4 m (13 ft)1

最高速度

時速約 22 公里（14 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 2.5 台汽車一樣重

跟 2 台汽車排成一排一樣長跟 51 根香蕉頭尾相接一樣長跟 200 隻狗一樣重跟 800 顆西瓜一樣重跟 5 整班小學生一樣重跟 9 隻北極熊一樣重能在 16 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Hypacrosaurus 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)

Hypacrosaurus 時速約 22 公里 (14 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

Hypacrosaurus had very tall spines on its backbone, making its back look high and ridged.1

Its hollow crest was like Corythosaurus's but smaller and more pointed, and it may have been used to make sounds.1

Scientists found nests, eggs, and babies of Hypacrosaurus, giving us a rare look at how these dinosaurs raised their young.1

Hypacrosaurus could walk on two legs or four, and it could reach plants up to 4 metres (13 feet) high.1

Its teeth were constantly replaced, and it had hundreds of teeth packed together for grinding tough plants.1

The species H. stebingeri is known from the largest collection of baby skeletons of any single hadrosaur species.1

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

?How big was Hypacrosaurus?

About 9.1 metres (30 feet) long and up to 4.0 tonnes (4.4 tons).1

?What did Hypacrosaurus eat?

It was an herbivore that ate plants like pine needles, seeds, fruit, twigs, and magnolia leaves.3

?When did Hypacrosaurus live?

It lived during the Late Cretaceous period, about 75 to 69.5 million years ago.1

?Where was Hypacrosaurus found?

Fossils have been found in Alberta, Canada, and Montana, United States.1

?Did Hypacrosaurus have a crest?

Yes, it had a tall, hollow, rounded crest on its head, which was probably used for making sounds and as a visual signal.1

?How fast could Hypacrosaurus run?

Probably up to about 22 km/h (14 mph), about as fast as a grown-up riding a bike. This is an estimate from its size. It walked and ran on two legs.3

迷思破解王

迷思： Some people think Hypacrosaurus was a sea creature because of its crest.

真相： It was a land dinosaur that lived near rivers and plains, not in the sea.1

給恐龍專家

學名: Hypacrosaurus
命名者: Brown 19134
類群: 鴨嘴龍類
科 / 演化支: Hadrosauridae4
分類: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae4
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)4
岩層: Two Medicine, Horseshoe Canyon, Oldman4
國家: 加拿大, 美國4
化石紀錄: The Paleobiology Database 收錄 37 筆4
又名: Cheneosaurus （舊名稱現在也算作同一種動物）4
發現: Barnum Brown collected the first fossils in 1910 along the Red Deer River in Alberta, Canada, and named Hypacrosaurus in 1913.1
仍有爭議: Scientists debate whether H. stebingeri is a separate species or just a younger version of H. altispinus.1