恐龍卡第 1946 張，共 2 027 張

Xiongguanlong

名字的意思： “Xiongguanlong means 'Xiong Guan lizard', named after the Jiayuguan Pass, a famous gateway on the Great Wall of China.”1

吃：肉暴龍類白堊紀早期

Xiongguanlong was an early cousin of the mighty T. rex. It had a long, narrow snout and lived in what is now China about 120 million years ago. It was a meat-eater that could run after its prey.1 2

生存年代

121 到 113 百萬年前5

白堊紀早期

化石發現地

Fossils of Xiongguanlong were found in the Xinminpu Group in Gansu Province, western China.1 2

長度

5 m (16 ft)3

體重

200 kg 到 270 kg (441 到 595 lb)3

高度

1.7 m (5.6 ft)

估計值

最高速度

時速約 48 公里（30 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 14 隻狗一樣重

跟 5 隻狗從鼻子接到尾巴一樣長跟 28 根香蕉頭尾相接一樣長跟 54 顆西瓜一樣重跟 14 個幼兒園小朋友一樣重跟 8 個小學生一樣重能在 7.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Xiongguanlong 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)

Xiongguanlong 時速約 48 公里 (30 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

Xiongguanlong had a narrow and long muzzle, similar to the later tyrannosaur Alioramus.1

It is the sister taxon to Tyrannosauridae plus Appalachiosaurus, meaning it is closely related to the family that includes T. rex.1

Xiongguanlong shows several features that later became hallmarks of tyrannosaurids, like a sharp crest on the top of its skull and a boxy braincase.1

Its premaxillary teeth had a ridge on the inner side, a feature seen in later tyrannosaurids.1

The slender, unornamented nasals of Xiongguanlong suggest that the evolution of tyrannosaur feeding adaptations was more complex than previously thought.1

Xiongguanlong lived during the Aptian to Albian stages, about 121.4 to 113.2 million years ago.2

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

?How big was Xiongguanlong?

About 5 metres (16 feet) long and weighed around 270 kilograms (600 pounds).3 4

?What did Xiongguanlong eat?

It was a meat-eater that hunted small- to medium-sized animals.4

?When did Xiongguanlong live?

It lived during the Early Cretaceous, about 121 to 100 million years ago.3 4

?Where was Xiongguanlong found?

Its fossils were discovered in Gansu, western China.3 4

?Was Xiongguanlong a dinosaur?

Yes, it was a theropod dinosaur and an early cousin of T. rex.3 4

?Why did Xiongguanlong have a long snout?

Its long, narrow snout was similar to Alioramus and may have helped it catch smaller prey.3 4

給恐龍專家

學名: Xiongguanlong
命名者: Li et al. 20095
類群: 暴龍類
科 / 演化支: Tyrannosauroidea5
分類: Theropoda > Tyrannosauroidea5
岩石的年代: 121 到 113 百萬年 (Aptian)5
岩層: Xiagou5
國家: 中國5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Xiongguanlong was named by Daqing Li and colleagues in 2009 based on a fossil found in the Xinminpu Group of Gansu, China.1
仍有爭議: Scientists are still debating how body size evolved in tyrannosauroids, and whether the trend of increasing size seen in North American tyrannosaurids extends through the whole group.1