恐龍卡第 1858 張，共 2 027 張

Unaysaurus

名字的意思： “black water lizard”1

吃：植物長脖子恐龍三疊紀晚期

Unaysaurus was an early long-necked dinosaur that lived in what is now Brazil about 225 million years ago. It was a plant-eater and one of the first dinosaurs to have a long neck and walk on four legs.1

生存年代

227 到 206 百萬年前4

三疊紀晚期

化石發現地

Rio Grande do Sul, Brazil1

長度

2.5 到 3 m (8.2 到 9.8 ft)1

體重

70 kg (154 lb)3

高度

0.7 到 0.8 m (2.3 到 2.6 ft)3

最高速度

時速約 40 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？

牠有多高？

牠有多重？

跟 4 隻狗一樣重

跟 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長跟 14 顆西瓜一樣重跟 4 個幼兒園小朋友一樣重跟 2 個小學生一樣重能在 9 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Unaysaurus 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)

Unaysaurus 時速約 40 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

Unaysaurus is one of the earliest known dinosaurs from Brazil, dating back to about 225 million years ago.1

Its name means 'black water lizard' in the Tupi language, referring to the dark-colored rocks where it was found.1

Unaysaurus was a close relative of Plateosaurus, a well-known dinosaur from Europe, suggesting that early dinosaurs could travel across the supercontinent Pangaea.2

The only known skeleton of Unaysaurus is semi-articulated, meaning many bones were still connected when found, including a nearly complete skull.1

Unaysaurus had a blunt ridge on its upper arm bone that may have helped attach strong muscles for walking or feeding.1

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

?How big was Unaysaurus?

About 2.5 metres long, 70 to 80 centimetres tall at the hip, and weighed roughly 70 kilograms.3

?What did Unaysaurus eat?

It was a plant-eater, or herbivore, that fed on ferns and other Triassic plants.3

?When did Unaysaurus live?

It lived during the Late Triassic Period, about 225 to 200 million years ago.3

?Where was Unaysaurus found?

Its fossils were discovered in southern Brazil, near the city of Santa Maria, in the Caturrita Formation.3

給恐龍專家

學名: Unaysaurus
命名者: Leal et al. 20044
類群: 長脖子恐龍
科 / 演化支: Plateosauridae4
分類: Sauropodomorpha4
岩石的年代: 227 到 206 百萬年 (Norian)4
岩層: Caturrita4
國家: 巴西4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Unaysaurus was named in 2004 by Luciano Leal and colleagues based on a skeleton found in the Caturrita Formation of Brazil.1
仍有爭議: Scientists are not sure whether Unaysaurus belongs to the family Plateosauridae or to its own group, because different studies give different results.2