恐龍卡第 1516 張，共 2 027 張

Qiaowanlong

名字的意思： “bridge bend dragon, after a cultural relic near the fossil site”1

吃：植物長脖子恐龍白堊紀早期

Qiaowanlong was a long-necked plant-eating dinosaur that lived in China during the Early Cretaceous. It was a brachiosaurid, meaning it had front legs as long as or longer than its back legs, like a giant giraffe. This dinosaur is one of the first well-preserved brachiosaurids ever found in Asia.2 1

生存年代

121 到 113 百萬年前4

白堊紀早期

化石發現地

Yujingzi Basin, Gansu Province, China4 1

長度

12 到 20.7 m (39 到 68 ft)3

體重

6 公噸到 13 公噸 (13,200 到 28,700 lb)3

高度

4.3 m (14 ft)3

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？

牠有多重？

跟 2 頭大象一樣重

跟 5 台汽車排成一排一樣長跟 120 根香蕉頭尾相接一樣長跟 9 台汽車一樣重跟 2600 顆西瓜一樣重跟 16 整班小學生一樣重跟 29 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）

Qiaowanlong 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)

Qiaowanlong 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

Qiaowanlong is known from eight neck vertebrae and part of the hip, found in two rock blocks in 2007.1

Its neck bones were short compared to other brachiosaurids. For example, its sixth neck vertebra was only 43 cm long, while the same bone in Brachiosaurus was 90 cm.1

Even though Qiaowanlong was small for a brachiosaurid, the fused bones in its spine show it was an adult or nearly full-grown.1

Qiaowanlong had a special feature in its neck: the neural spines (bumps on top of the vertebrae) were deeply split into two branches.1

This dinosaur shared a trait with the North American brachiosaurid Sauroposeidon: both lacked a certain bone ridge in the neck vertebrae.2 1

The hip bone called the ischium was very reduced in Qiaowanlong, with a shaft only about half as wide as the pubis bone.1

Qiaowanlong lived alongside many other dinosaurs in the Yujingzi Basin, including therizinosaurs, tyrannosaurs, and early duck-billed dinosaurs.1

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

?How big was Qiaowanlong?

Scientists disagree on its size. One estimate says it was about 12 metres (39 feet) long and weighed 6 tons, while another says it was 20.7 metres (68 feet) long and weighed 13 tons.3

?What did Qiaowanlong eat?

Qiaowanlong was a plant-eater. It used its long neck to reach leaves high in trees, like a giant giraffe.3 1

?When did Qiaowanlong live?

Qiaowanlong lived during the Early Cretaceous Period, about 125 to 113 million years ago.3 2

?Where was Qiaowanlong found?

Its fossils were discovered in the Yujingzi Basin in Gansu Province, China, in 2007.3 1

給恐龍專家

學名: Qiaowanlong
命名者: You and Li 20094
類群: 長脖子恐龍
科 / 演化支: Euhelopodidae4
分類: Sauropodomorpha > Sauropoda > Macronaria4
岩石的年代: 121 到 113 百萬年 (Aptian)4
岩層: Xiagou4
國家: 中國4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Qiaowanlong was named in 2009 by paleontologists Hailu You and Daqing Li. The fossils were dug up in 2007 by a field crew from the Fossil Research and Development Center in Gansu, China.4 1
仍有爭議: Scientists are not sure exactly how big Qiaowanlong grew, because only a partial skeleton has been found.1