恐龍卡第 1658 張，共 2 027 張

Silutitan

名字的意思： “Silk Road giant”1

吃：植物長脖子恐龍白堊紀早期

Silutitan was a huge, long-necked plant-eater that lived in what is now China. Its fossils were found alongside many pterosaur bones, including eggs and babies. This dinosaur was one of the first big land animals discovered in that special fossil site.1 2

生存年代

137 到 133 百萬年前3

白堊紀早期

化石發現地

Hami, Xinjiang, China1 3

長度

20 m (66 ft)1

高度

4.5 m (15 ft)

估計值

最高速度

時速約 12 公里（7 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 4 台汽車排成一排一樣長跟 110 根香蕉頭尾相接一樣長高到能從 2 樓的窗戶往裡看能在 30 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Silutitan 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)

Silutitan 時速約 12 公里 (7 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

Silutitan is known only from six neck bones and some ribs. Scientists used those bones to figure out its body length was over 20 metres (66 feet).1

Its name means 'Silk Road giant' because the fossils were found near the ancient Silk Road trade route in China.1

Silutitan lived about 137 to 132 million years ago, during the Early Cretaceous period.3

The bones of Silutitan were found in lake-bottom sandstones, along with many pterosaur fossils including eggs and embryos.1 2

Silutitan was a somphospondylan sauropod, a group of long-necked dinosaurs with air-filled bones that made them lighter.1

Its neck vertebrae had special bumps and ridges that helped scientists tell it apart from other sauropods.1

Silutitan 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Silutitan 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。

給恐龍專家

學名: Silutitan
命名者: Wang et al. 20213
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae3
分類: Sauropodomorpha > Sauropoda > Macronaria3
岩石的年代: 137 到 133 百萬年 (Valanginian)3
岩層: Shengjinkou3
國家: 中國3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Silutitan was named in 2021 by a team of scientists led by Xiaolin Wang. The fossils were found in the Hami region of Xinjiang, China, starting in 2016.1 3
仍有爭議: Scientists are not sure exactly how long Silutitan's whole body was, because only its neck bones have been found. The length estimate of over 20 metres is based on comparing it to a similar dinosaur called Euhelopus.1