恐龍卡第 1582 張，共 2 027 張

Sarahsaurus

名字的意思： “Sarah's lizard”1

吃：植物長脖子恐龍侏羅紀早期

Sarahsaurus was an early long-necked dinosaur that lived in what is now Arizona during the Early Jurassic. It was one of the first sauropodomorphs to appear in North America after a big extinction event.2 1

生存年代

200 到 184 百萬年前4

侏羅紀早期

化石發現地

Arizona, USA (Kayenta Formation, Navajo Nation)1

長度

4 到 5 m (13 到 16 ft)4

體重

150 kg 到 250 kg (331 到 551 lb)4

高度

1.4 m (4.6 ft)

估計值

最高速度

時速約 39 公里（24 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

牠有多重？

跟 12 隻狗一樣重

跟 5 隻狗從鼻子接到尾巴一樣長跟 28 根香蕉頭尾相接一樣長跟 50 顆西瓜一樣重跟 13 個幼兒園小朋友一樣重跟 8 個小學生一樣重能在 9.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Sarahsaurus 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)

Sarahsaurus 時速約 39 公里 (24 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

Sarahsaurus is one of only three sauropodomorph dinosaurs known from the Early Jurassic of North America.2

Its name honors Sarah and Ernest Butler, whose generosity helped science in Texas.1

The specific name 'aurifontanalis' means 'of the gold spring', referring to Gold Spring, Arizona, where the first skeleton was found.1

Scientists used CT scans to study the skull of Sarahsaurus without damaging the fossils.1

Sarahsaurus belongs to the group Massospondylidae, which includes dinosaurs mostly found in the southern continents.2

The holotype skeleton includes a partial skull, most of the backbone, both arms, and both legs.1

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

?How big was Sarahsaurus?

Sarahsaurus was mid-sized for a basal sauropodomorph. Its vertebral column measured more than 3.1 metres (10 ft) long, and one estimate gives a total length of about 4 metres (13 ft) and a weight of 200 kilograms (440 lb).3

?What did Sarahsaurus eat?

Sarahsaurus was probably a plant-eater, but it had very large, powerful hands, which might mean it also ate some meat, making it an omnivore.3

?When did Sarahsaurus live?

Sarahsaurus lived during the Early Jurassic period, about 200 to 190 million years ago.3

?Where was Sarahsaurus found?

All Sarahsaurus fossils were found near Gold Spring, Arizona, in the Kayenta Formation.3 1

?Why is it called Sarahsaurus?

It is named after Sarah Butler, who helped fund a dinosaur exhibit, and the species name 'aurifontanalis' means 'of the gold spring', after the place where it was found.3

?Was Sarahsaurus a dinosaur?

Yes, Sarahsaurus was a dinosaur, specifically a basal sauropodomorph, a group of long-necked dinosaurs.3

迷思破解王

迷思： Some people think Sarahsaurus was a giant, elephant-sized dinosaur.

真相： Sarahsaurus was actually quite small for a sauropodomorph, only about 4 to 5 meters long and weighing as much as a black bear.4

給恐龍專家

學名: Sarahsaurus
命名者: Rowe et al. 20114
類群: 長脖子恐龍
科 / 演化支: Massospondylidae4
分類: Sauropodomorpha4
岩石的年代: 200 到 184 百萬年 (Sinemurian / Pliensbachian)4
岩層: Kayenta4
國家: 美國4
化石紀錄: The Paleobiology Database 收錄 2 筆4
發現: Sarahsaurus was named in 2011 by Timothy Rowe, Hans-Dieter Sues, and Robert Reisz. The first fossils were collected between 1997 and 2000 by a team from the University of Texas and the Navajo Nation EcoScouts.4 1
仍有爭議: Scientists are still debating whether the three North American sauropodomorphs arrived by separate migrations or evolved from a common ancestor that lived in North America.2