恐龍卡第 1470 張，共 2 027 張

Proa

名字的意思： “prow, because its beak bone looked like a ship's prow”1

吃：植物有喙的草食恐龍白堊紀早期

Proa was a plant-eating dinosaur that lived about 112 million years ago in what is now Spain. It had a pointed beak and walked on two legs, but could probably also drop to all fours. It was a relative of the bigger duck-billed dinosaurs.1 2

生存年代

113 到 110 百萬年前4

白堊紀早期

化石發現地

Fossils were found in Teruel Province, Spain, in the Escucha Formation.1 2

長度

5.5 到 6.5 m (18 到 21 ft)3

體重

500 kg 到 1 公噸 (1,100 到 2,200 lb)3

高度

1.5 到 2 m (4.9 到 6.6 ft)3

最高速度

時速約 35 公里（22 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 50 隻狗一樣重

跟 6 隻狗從鼻子接到尾巴一樣長跟 36 根香蕉頭尾相接一樣長跟 200 顆西瓜一樣重跟 53 個幼兒園小朋友一樣重跟 31 個小學生一樣重跟 2 隻北極熊一樣重能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Proa 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)

Proa 時速約 35 公里 (22 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

Proa's beak bone had a pointed tip with side prongs that stuck out, which is unique among its relatives.1

It lived during the Early Cretaceous, about 112 million years ago, which was a time when many new dinosaur groups were appearing.1

Proa is known from at least three partial skeletons and several skull pieces, so scientists have a good idea of what it looked like.1

It was a basal iguanodont, meaning it was an early relative of the bigger iguanodons and duck-billed dinosaurs.3

Proa helps fill a gap in the fossil record of European iguanodonts, which was missing for millions of years.3

Proa 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Proa 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。

給恐龍專家

學名: Proa
命名者: McDonald et al. 20124
類群: 有喙的草食恐龍
科 / 演化支: Hadrosauriformes4
分類: Ornithischia > Ornithopoda > Iguanodontia4
岩石的年代: 113 到 110 百萬年 (Albian)4
岩層: Escucha4
國家: 西班牙4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Proa was named by Andrew T. McDonald and colleagues in 2012, based on fossils from coal mines near Val de Ariño in Spain.1
仍有爭議: Scientists are still debating exactly where Proa sits on the dinosaur family tree, with some placing it close to Iguanodon and others with Asian relatives.1