恐龍卡第 1171 張，共 2 027 張

Mesetasaurus

名字的意思： “Meseta de Artigas lizard”1

吃：植物長脖子恐龍白堊紀晚期

Mesetasaurus was a long-necked plant-eater that lived in what is now Uruguay. It is known from two well-preserved tail bones that were found in the 1980s. This dinosaur was a type of titanosaur, a group of huge sauropods.1 2

生存年代

86 到 72 百萬年前4

白堊紀晚期

化石發現地

Paysandú Department, Uruguay1 2

最高速度

時速約 15 公里（9 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)

Mesetasaurus 時速約 15 公里 (9 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

Mesetasaurus is the second non-bird dinosaur ever described from Uruguay.1

Its fossils were found on a plateau called Meseta de Artigas, which gave the dinosaur its name.1 2

The only known bones are two tail vertebrae, which are very well preserved.1 2

Mesetasaurus belonged to a group called Aeolosaurini, which lived in South America during the Late Cretaceous.1 3

Scientists think Mesetasaurus lived between about 85 and 72 million years ago.3

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

?How big was Mesetasaurus?

Nobody knows for sure. Only two tail bones have been found, so scientists cannot estimate its full size.1

?What did Mesetasaurus eat?

It was a plant eater. As a titanosaurian, it ate plants.1

?When did Mesetasaurus live?

It lived during the Late Cretaceous, probably between about 85 and 72 million years ago.1

?Where was Mesetasaurus found?

Its fossils were found in the Guichón Formation of Paysandú Department, Uruguay.1

給恐龍專家

學名: Mesetasaurus
命名者: Soto Núñez et al. 20264
類群: 長脖子恐龍
科 / 演化支: Aeolosaurini4
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria4
岩石的年代: 86 到 72 百萬年 (Santonian / Campanian)4
岩層: Guichón4
國家: 烏拉圭4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Mesetasaurus was named by Matías Soto Núñez and colleagues in 2026. The two tail bones were found in the 1980s in the Guichón Formation of Uruguay.1 2
仍有爭議: Because only two tail bones have been found, scientists are not sure about the exact size or full appearance of Mesetasaurus.1 2