恐龍卡第 1978 張，共 2 027 張

Yongjinglong

名字的意思： “dragon of Yongjing (the county in Gansu, China)”1

吃：植物長脖子恐龍白堊紀早期

Yongjinglong was a big, long-necked plant-eater that lived in what is now China. It had a very long shoulder blade that stretched more than half the length of its body. Scientists think it was still growing when it died.1

生存年代

126 到 113 百萬年前4

白堊紀早期

化石發現地

Gansu Province, China, near the town of Zhongpu1

長度

最多 12 m (39 ft)3

體重

最多 7.5 公噸 (16,500 lb)3

高度

2.9 m (9.5 ft)

估計值

最高速度

時速約 16 公里（10 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 5 台汽車一樣重

跟 2.5 台汽車排成一排一樣長跟 67 根香蕉頭尾相接一樣長大約跟一頭大象一樣重跟 1500 顆西瓜一樣重跟 9 整班小學生一樣重跟 17 隻北極熊一樣重能在 22 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Yongjinglong 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)

Yongjinglong 時速約 16 公里 (10 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

Yongjinglong's shoulder blade was extremely long and straight, stretching over half the length of its trunk.1

Its neck and back bones had deep, air-filled holes called pleurocoels that covered the whole side of each bone, making the skeleton lighter.1

The ridges on the sides of its middle back bones formed a pattern that looks like the Roman numeral XI.1

Yongjinglong lived about 125 to 113 million years ago, during the Early Cretaceous period.2

The only known fossil is a subadult, meaning Yongjinglong was not fully grown when it died.1

Its teeth were long and spoon-shaped, perfect for scooping up plants.1

Yongjinglong 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Yongjinglong 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: Yongjinglong
命名者: Li et al. 20144
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 126 到 113 百萬年 (Barremian / Aptian)4
岩層: 54
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Yongjinglong was discovered in 2008 by Li Daqing and You Hailu beside the G75 Highway in Gansu, China. It was named and described by Li and colleagues in 2014.1 2
仍有爭議: Scientists are not sure exactly how big Yongjinglong grew, because the only known fossil is from a young animal.1