恐龍卡第 1731 張，共 2 027 張

Suuwassea

名字的意思： “first thunder heard in Spring”1

吃：植物長脖子恐龍侏羅紀晚期到白堊紀早期

Suuwassea was a long-necked plant-eater that lived in what is now Montana, USA. It was about two-thirds the size of its famous relatives Diplodocus and Apatosaurus. Its name comes from the Crow Native American language and means 'first thunder heard in Spring.'2 1

生存年代

155 到 143 百萬年前3

侏羅紀晚期到白堊紀早期

化石發現地

Southern Carbon County, Montana, USA2 1

長度

14 到 15 m (46 到 49 ft)2 1

體重

5 公噸 (11,000 lb)2

高度

3.5 m (11 ft)

估計值

最高速度

時速約 19 公里（12 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 3 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大約跟一頭大象一樣重跟 1000 顆西瓜一樣重跟 6 整班小學生一樣重跟 11 隻北極熊一樣重能在 19 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Suuwassea 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)

Suuwassea 時速約 19 公里 (12 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

Suuwassea is known from only one partial skeleton, found in 1999 and 2000.2 1

It had a mix of features from both diplodocids and dicraeosaurids, making it a primitive member of the group.2 1

The bones of Suuwassea were found in the Morrison Formation, a famous rock layer that also produced many other dinosaurs like Stegosaurus and Allosaurus.2 1

Its skull had a long, narrow process on the supraoccipital bone that barely touched the foramen magnum, the hole where the spinal cord enters the skull.1

The tail of Suuwassea had amphiplatyan centra in the distal vertebrae, meaning the ends of the bones were flat.1

The humerus (upper arm bone) had a well-developed dorsal tuberculum, a bump for muscle attachment.1

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

?How big was Suuwassea?

Suuwassea was about 15 meters long and weighed around 5 metric tons. That is roughly half the size of Diplodocus or Apatosaurus.2 1

?What did Suuwassea eat?

Suuwassea was a herbivore, meaning it ate plants. It used its long neck to reach leaves from trees and other vegetation.2

?When did Suuwassea live?

Suuwassea lived during the Late Jurassic period, about 156 to 147 million years ago. Its fossils were found in the Morrison Formation in Montana, USA.2

?Is Suuwassea a dinosaur?

Yes, Suuwassea is a dinosaur. It is a type of sauropod, specifically a dicraeosaurid, which is a long-necked, plant-eating dinosaur.2

給恐龍專家

學名: Suuwassea
命名者: Harris and Dodson 20043
類群: 長脖子恐龍
科 / 演化支: Dicraeosauridae3
分類: Sauropodomorpha > Sauropoda > Diplodocoidea3
岩石的年代: 155 到 143 百萬年 (Kimmeridgian / Tithonian)3
岩層: Morrison3
國家: 美國3
化石紀錄: The Paleobiology Database 收錄 2 筆3
發現: Suuwassea was named by J.D. Harris and Peter Dodson in 2004. The only known skeleton was collected during expeditions in 1999 and 2000, funded by Emilie deHellebranth, a paleontology advocate.2 1
仍有爭議: Scientists are not sure whether Suuwassea is more closely related to diplodocids or dicraeosaurids, because it has features of both groups.2 1