恐龍卡第 1446 張，共 2 027 張

Plesiohadros

名字的意思： “near to hadrosaurids”1

吃：植物有喙的草食恐龍白堊紀晚期

Plesiohadros was a big, plant-eating dinosaur that walked on four legs but could probably run on two. It had a beak like a duck and lots of teeth for chewing tough plants. This dinosaur lived in what is now Mongolia during the Late Cretaceous period.1 2

生存年代

86 到 72 百萬年前3

白堊紀晚期

化石發現地

Alag Teg locality, Alagteeg Formation, southern Mongolia1 2

長度

10 m (33 ft)2

最高速度

時速約 41 公里（25 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？

跟 2 台汽車排成一排一樣長跟 56 根香蕉頭尾相接一樣長能在 8.8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Plesiohadros 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)

Plesiohadros 時速約 41 公里 (25 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

Plesiohadros is the only known hadrosaur from the Alagteeg Formation.1

It had a very long gap between its first tooth and its beak, about one-third the length of its tooth row.2

Its teeth had only one or two extra ridges, unlike many other hadrosaurs that had more.2

The bone above its eye socket flared out into a rough, wing-like rim, a feature not seen in other hadrosaurs.2

Plesiohadros lived between 85.7 and 72.2 million years ago, during the Santonian and Campanian ages.2

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

?What did Plesiohadros eat?

Plesiohadros was a plant-eating dinosaur, so it ate plants. It had a beak like a duck and lots of teeth for chewing tough plants.1 3

?When did Plesiohadros live?

Plesiohadros lived during the Late Cretaceous period, between about 85.7 and 72.2 million years ago, during the Santonian and Campanian ages.3

?Where was Plesiohadros found?

Plesiohadros was found in southern Mongolia, at a place called Alag Teg, in the Alagteeg Formation.1

?How big was Plesiohadros?

Scientists do not know its exact size, but it was a large dinosaur, with an adult length estimated at about 8 metres, so quite big.3

迷思破解王

迷思： Plesiohadros was a dinosaur that lived in the sea.

真相： No, Plesiohadros was a land-dwelling dinosaur. Its name sounds like 'plesiosaur', but it was a beaked plant-eater that walked on land.1 2

給恐龍專家

學名: Plesiohadros
命名者: Tsogtbaatar et al. 20143
類群: 有喙的草食恐龍
科 / 演化支: Hadrosauroidea3
分類: Ornithischia > Ornithopoda > Iguanodontia3
岩石的年代: 86 到 72 百萬年 (Santonian / Campanian)3
岩層: Alagteeg3
國家: 蒙古3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Plesiohadros was named by Tsogtbaatar and colleagues in 2014 from a partial skeleton with skull found at the Alag Teg locality in Mongolia.1 2
仍有爭議: Scientists are still debating whether Plesiohadros was a true hadrosaurid or a more primitive hadrosauroid, since it has a mix of features.2