恐龍卡第 1447 張，共 2 027 張

Plesiolophus

名字的意思： “near crest”1

吃：植物鴨嘴龍類白堊紀晚期

Plesiolophus was a duck-billed dinosaur that lived about 77 million years ago in what is now Canada. It had a flat head without a big crest, unlike its later relative Parasaurolophus. This plant-eater walked on two legs or all fours and could probably run fast to escape predators.1 2

生存年代

84 到 72 百萬年前3

白堊紀晚期

化石發現地

Oldman Formation near Warner, Alberta, Canada1 2

長度

6 到 8 m (20 到 26 ft)1

體重

2 公噸到 3 公噸 (4,400 到 6,600 lb)1

高度

2 到 2.5 m (6.6 到 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 2 台汽車一樣重

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 150 隻狗一樣重跟 600 顆西瓜一樣重跟 4 整班小學生一樣重跟 7 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）

Plesiolophus 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)

Plesiolophus 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

Plesiolophus is one of the oldest known members of the Parasaurolophini group, which includes the famous Parasaurolophus with its long curved crest.1 2

Its skull had more primitive features than later parasaurolophins, meaning it looked more like earlier duck-billed dinosaurs.1

The only fossil found so far is a partial skull roof and braincase, discovered by fossil hunter Wendy Sloboda.1 2

Scientists think Plesiolophus might be a direct ancestor of Parasaurolophus, because it lived in older rocks and had a simpler skull.2

Plesiolophus lived alongside other dinosaurs like the horned dinosaur Centrosaurus and the tyrannosaur Daspletosaurus.1

Its name means 'near crest' because it is closely related to Parasaurolophus but lacks the big crest.1

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

?How big was Plesiolophus?

Scientists do not know for sure because only a partial skull has been found, so its full size is unknown.1

?Did Plesiolophus have a crest?

No, Plesiolophus had a flat head without a big crest, unlike its relative Parasaurolophus.1

?What did Plesiolophus eat?

Plesiolophus was a plant-eater, like all hadrosaurs. It used its duck-like beak and rows of teeth to chew tough plants.1

?When did Plesiolophus live?

Plesiolophus lived about 77 million years ago during the Late Cretaceous period.1

?Where was Plesiolophus found?

Its fossil was discovered in the Oldman Formation of Alberta, Canada, near the town of Warner.1

迷思破解王

迷思： Plesiolophus had a large hollow crest like Parasaurolophus.

真相： Plesiolophus had a flat skull without a crest, showing that early parasaurolophins did not have the big crests of later species.1 2

給恐龍專家

學名: Plesiolophus
命名者: McFeeters et al. 20263
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: Oldman3
國家: 加拿大3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The fossil was found by Wendy Sloboda near Warner, Alberta, Canada, and was named by Bradley McFeeters and colleagues in 2026. The species name warnerensis honors the town of Warner.1 2
仍有爭議: Scientists are not sure if Plesiolophus is a direct ancestor of Parasaurolophus or just a close relative, because the fossil is incomplete.2