恐龍卡第 1690 張，共 2 027 張

Sonorasaurus

名字的意思： “Sonora lizard”1

吃：植物長脖子恐龍白堊紀早期到白堊紀晚期

Sonorasaurus was a giant, long-necked plant-eater that lived in what is now Arizona, USA. It was about as long as a school bus and weighed as much as two elephants!1

生存年代

106 到 94 百萬年前4

白堊紀早期到白堊紀晚期

化石發現地

Arizona, USA1

長度

15 m (49 ft)1

體重

10 公噸 (22,000 lb)1

高度

8 m (26 ft)1

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

牠有多大？

牠有多長？

牠有多高？

牠有多重？

跟 7 台汽車一樣重

跟 3 台汽車排成一排一樣長跟 83 根香蕉頭尾相接一樣長跟 1.5 頭大象一樣重跟 2000 顆西瓜一樣重比長頸鹿還高跟 12 整班小學生一樣重跟 22 隻北極熊一樣重高到能從 3 樓的窗戶往裡看能在 24 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Sonorasaurus 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)

Sonorasaurus 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

Sonorasaurus is one of the youngest brachiosaurid sauropods ever found in North America.2

It lived in a dry, woodland environment with seasonal rainfall, not a swamp or coast.2

The only known Sonorasaurus fossil shows that it grew slowly and unevenly, unlike many other sauropods.2

Sonorasaurus was about one third the size of its relative Brachiosaurus.1

It was named after the Sonora River in the Sonoran Desert, where its fossils were first found.1

On April 10, 2018, Sonorasaurus became the official state dinosaur of Arizona.1

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

?How big was Sonorasaurus?

About 15 metres (49 feet) long, 8 metres (26 feet) tall, and weighed 10 metric tons (11 short tons). That is about half the size of Brachiosaurus.1 3

?When did Sonorasaurus live?

It lived during the Early to Late Cretaceous, about 112 to 93 million years ago.1

?What did Sonorasaurus eat?

It was a plant-eater that ate trees and other vegetation.3

?Where was Sonorasaurus found?

Its fossils were found in southern Arizona, USA, in the Sonoran Desert near the Sonora River.1

?Is Sonorasaurus a dinosaur?

Yes, it is a brachiosaurid sauropod dinosaur.1

?Why is Sonorasaurus the state dinosaur of Arizona?

It was declared the official state dinosaur of Arizona on April 10, 2018, because its fossils were found there.1 3

迷思破解王

迷思： Some people thought Sonorasaurus might be a hadrosaur (duck-billed dinosaur) or a therizinosaur.

真相： Scientists now agree it is a brachiosaurid sauropod, a long-necked plant-eater.1

給恐龍專家

學名: Sonorasaurus
命名者: Ratkevich 19984
類群: 長脖子恐龍
科 / 演化支: Brachiosauridae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 106 到 94 百萬年 (Albian / Cenomanian)4
岩層: Turney Ranch4
國家: 美國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Sonorasaurus was discovered in November 1994 by geology student Richard Thompson in the Whetstone Mountains of Arizona. It was named and described by paleontologist Ronald Paul Ratkevich in 1998.1
仍有爭議: Scientists are still debating exactly how Sonorasaurus is related to other brachiosaurids, and more fossils are needed to be sure.2