恐龍卡第 0968 張，共 2 027 張

Kileskus

名字的意思： “lizard in the Khakas language”1

吃：肉暴龍類侏羅紀中期

Kileskus was an early cousin of the famous Tyrannosaurus rex. It lived about 166 million years ago, long before T. rex existed, and was much smaller. It was a meat-eater that walked on two legs.1

生存年代

168 到 165 百萬年前5

侏羅紀中期

化石發現地

Berezovsk Quarry, Krasnoyarsk Krai, Russia5 1

長度

5.2 m (17 ft)3

體重

700 kg (1,500 lb)3

高度

1.85 m (6.1 ft)3

最高速度

時速約 39 公里（24 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 35 隻狗一樣重

跟 5 隻狗從鼻子接到尾巴一樣長跟 29 根香蕉頭尾相接一樣長跟 140 顆西瓜一樣重跟 37 個幼兒園小朋友一樣重跟 22 個小學生一樣重能在 9.2 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Kileskus 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)

Kileskus 時速約 39 公里 (24 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

Kileskus is one of the oldest known tyrannosauroids, the group that includes Tyrannosaurus rex. It lived about 100 million years before T. rex.1

Scientists found only a few bones of Kileskus: part of the upper jaw, a skull bone, and some hand and foot bones.1

Kileskus had a long skull that looked similar to another early tyrannosaur called Proceratosaurus from England.1 2

Its nostrils were tilted backward at a 40-degree angle, which is a clue that helps scientists know it was a proceratosaurid.1

The name Kileskus means 'lizard' in the Khakas language, spoken by people in Siberia where the fossils were found.1

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

?How big was Kileskus?

Nobody knows for sure, but it was small. Its upper jaw bone was just under 30 cm long, while the same bone in adult Tyrannosaurus rex was 60 cm long or longer, so Kileskus was much smaller than its later relatives.4

?When did Kileskus live?

Kileskus lived about 166 million years ago, during the Middle Jurassic period. That is about 100 million years before Tyrannosaurus rex appeared.1 4

?What did Kileskus eat?

Kileskus was a meat-eater. It was a theropod dinosaur, and its teeth and jaws show it hunted or scavenged other animals.1

?Did Kileskus have feathers?

Scientists do not know for sure, but it was an early tyrannosauroid, and many early tyrannosaurs were small and fuzzy. No feather fossils of Kileskus have been found, but it might have had some.4

?Was Kileskus a dinosaur?

Yes, Kileskus was a dinosaur. It was a theropod, a group of two-legged, mostly meat-eating dinosaurs that includes Tyrannosaurus rex.1

?Why is Kileskus important?

Kileskus is one of the oldest known tyrannosauroids, the group that includes T. rex. It helps scientists understand how tyrannosaurs first evolved, because it lived 100 million years before T. rex.1

給恐龍專家

學名: Kileskus
命名者: Averianov et al. 20105
類群: 暴龍類
科 / 演化支: Proceratosauridae5
分類: Theropoda > Tyrannosauroidea5
岩石的年代: 168 到 165 百萬年 (Bathonian)5
岩層: Itat5
國家: 俄羅斯5
化石紀錄: The Paleobiology Database 收錄 2 筆5
發現: Kileskus was named in 2010 by paleontologists Alexander Averianov, Sergei Krasnolutskii, and Stepan Ivantsov. They found the fossils in the Itat Formation of Siberia, Russia.1 2
仍有爭議: Scientists are not sure if Kileskus had a small crest on its nose, because the crest bones have not been found yet.1