恐龍卡第 1866 張，共 2 027 張

Urbacodon

名字的意思： “URBAC tooth, named after the Uzbeg, Russian, British, American and Canadian scientists who found it”1

吃：肉迅猛龍類白堊紀早期到白堊紀晚期

Urbacodon was a small, smart dinosaur that looked a bit like a bird. It had a long, low jaw with many teeth, but its teeth had no serrations, like a butter knife. It probably hunted small animals and maybe ate some plants too.1 2

生存年代

126 到 72 百萬年前4

白堊紀早期到白堊紀晚期

化石發現地

Uzbekistan (Dzharakuduk Formation), China (Iren Dabasu Formation), and possibly Russia (Ilek Formation)1 2

長度

1 到 2 m (3.3 到 6.6 ft)1

高度

0.69 m (2.3 ft)

估計值

最高速度

時速約 41 公里（25 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 隻家貓從鼻子接到尾巴一樣長跟 11 根香蕉頭尾相接一樣長能在 8.8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Urbacodon 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)

Urbacodon 時速約 41 公里 (25 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

Urbacodon is known mostly from its lower jaw bone, called a dentary. The jaw of the first species, U. itemirensis, is only 79.2 millimetres (3.12 inches) long.1

Unlike many other meat-eating dinosaurs, Urbacodon's teeth had no serrations, just like the teeth of Byronosaurus and Mei.1

The name Urbacodon is an acronym that honors scientists from Uzbekistan, Russia, Britain, America, and Canada who worked together on the project.1

Two species of Urbacodon have been named: U. itemirensis from Uzbekistan and U. norelli from China. They lived about 100 to 72 million years ago.1 2

The jaw of Urbacodon has a gap between the front teeth and the back teeth, a feature called a diastema. This might be unique to this dinosaur.1

Urbacodon was a troodontid, a group of dinosaurs that were very bird-like and had big brains for their size. They were probably very smart.1

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

?How big was Urbacodon?

Urbacodon was a small dinosaur, about 1 metre (3.3 feet) long.3

?What did Urbacodon eat?

Urbacodon was carnivorous, so it ate meat. It probably hunted small animals like lizards and mammals.3

?Did Urbacodon have feathers?

The fossils don't show feathers directly, but since Urbacodon was a troodontid, a group closely related to birds, it likely had feathers.1

?Where was Urbacodon found?

Urbacodon fossils have been found in Uzbekistan and China.1 3

給恐龍專家

學名: Urbacodon
命名者: Averianov and Sues 20074
類群: 迅猛龍類
科 / 演化支: Troodontidae4
分類: Theropoda > Troodontidae4
岩石的年代: 126 到 72 百萬年 (Barremian / Campanian)4
岩層: Ilek, Dzharakuduk, Iren Dabasu4
國家: 俄羅斯, 烏茲別克, 中國4
化石紀錄: The Paleobiology Database 收錄 6 筆4
發現: The first Urbacodon fossil, a left lower jaw, was found on September 9, 2004 by Anton Sergeevich Rezwiy near Itemir, Uzbekistan. It was named by Alexander Averianov and Hans-Dieter Sues in 2007.1
仍有爭議: Scientists are not sure if the gap between the front and back teeth in the jaw is a normal feature of Urbacodon or just a quirk of the one fossil found.1