恐龍卡第 1958 張，共 2 027 張

Yamanasaurus

名字的意思： “Yamana lizard”1

吃：植物長脖子恐龍白堊紀晚期

Yamanasaurus was a small, armored sauropod that lived in what is now Ecuador. It had a long neck and tail, a tiny head, and bony plates in its skin for protection. This dinosaur is the first one ever discovered in Ecuador!1 2

生存年代

72 到 66 百萬年前3

白堊紀晚期

化石發現地

Yamana region, Loja Province, southwestern Ecuador1 2

長度

6 m (20 ft)1

高度

1.6 m (5.2 ft)

估計值

最高速度

時速約 33 公里（21 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？

估計值

跟 6 隻狗從鼻子接到尾巴一樣長跟 33 根香蕉頭尾相接一樣長能在 11 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Yamanasaurus 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)

Yamanasaurus 時速約 33 公里 (21 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

Yamanasaurus was a saltasaurine, a group of sauropods that often lived near coasts and may have been small because they lived on islands.1 2

Its fossils were found by a local farmer in 2017, and scientists later studied them at a university in Ecuador.2

Yamanasaurus had a special kind of bone in its tail vertebrae that was spongy inside, without hollow spaces.1 2

This dinosaur lived about 66.9 million years ago, right before the asteroid hit that ended the age of dinosaurs.2

Yamanasaurus is the northernmost saltasaurine dinosaur ever found, meaning it lived farther north than its relatives.1 2

Its arm bone (radius) had a flattened shaft and a seven-sided, cup-shaped surface at the top.1 2

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

?What did Yamanasaurus eat?

It probably ate low plants, like ferns and shrubs, since it had a small head and a long neck for reaching ground-level food. [wikipedia.org]1

?How big was Yamanasaurus?

It was about 6 metres long, which is small for a sauropod.1

?Where was Yamanasaurus found?

Its fossils were discovered near Yamana, a town in southern Ecuador, close to the Peruvian border. [wikipedia.org]1

給恐龍專家

學名: Yamanasaurus
命名者: Apesteguía et al. 20203
類群: 長脖子恐龍
科 / 演化支: Saltasauridae3
分類: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria3
岩石的年代: 72 到 66 百萬年 (Maastrichtian)3
岩層: Río Playas3
國家: 厄瓜多3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Yamanasaurus was named in 2020 by Sebastián Apesteguía and colleagues. The fossils were found in 2017 by a farmer in the Yamana area of Loja Province, Ecuador, and later studied by scientists.1 2
仍有爭議: Scientists are not sure exactly how big Yamanasaurus was, because only a few bones have been found. The length of 6 metres is an estimate.1