恐龍卡第 0317 張，共 2 027 張

Byronosaurus

名字的意思： “Byron's lizard”1

吃：肉迅猛龍類白堊紀晚期

Byronosaurus was a small, fast dinosaur with a big brain and sharp senses. It lived in what is now Mongolia about 80 million years ago, and it was about the size of a turkey.1 2

生存年代

84 到 72 百萬年前3

白堊紀晚期

化石發現地

Ukhaa Tolgod and Bolor's Hill, Gobi Desert, Mongolia1

長度

1.5 到 2 m (4.9 到 6.6 ft)1

體重

4 kg 到 20 kg (9 到 44 lb)1

高度

0.5 m (1.6 ft)1

最高速度

時速約 36 公里（22 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 5 隻家貓一樣重

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跟 4 顆西瓜一樣重能在 10 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Byronosaurus 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)

Byronosaurus 時速約 36 公里 (22 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

Byronosaurus had a large brain for its size, making it one of the smartest non-bird dinosaurs.1

Its eyes faced forward, so it could judge distances well, which helped it hunt.2

Two baby Byronosaurus skulls were found inside a nest of oviraptorid eggs, probably as leftovers from a predator.1

Unlike other troodontids, Byronosaurus had smooth teeth without serrations, like its close relative Xixiasaurus.1

The first Byronosaurus fossils were discovered in 1993 by an American Museum of Natural History expedition to the Gobi Desert.1

Byronosaurus lived during the Late Cretaceous, about 80 to 71 million years ago.1

Its bones were mixed with bones of other animals when found, and scientists had to carefully sort them out.2

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

?How big was Byronosaurus?

Byronosaurus was a small dinosaur, about 1.5 to 2 metres (5 to 6.6 feet) long and 50 cm (20 inches) tall. It weighed only about 4 to 20 kg (9 to 44 pounds), about the size of a large bird.1 2

?What did Byronosaurus eat?

Scientists are not sure. Some think it ate meat, others think it may have eaten plants or both. Its smooth teeth without serrations suggest it may have had a different diet from other troodontids.1

?When did Byronosaurus live?

Byronosaurus lived during the Late Cretaceous Period, about 80 to 71 million years ago. Its fossils were found in Mongolia.1 2

?Was Byronosaurus a dinosaur?

Yes, Byronosaurus was a small theropod dinosaur, specifically a troodontid. It was not a bird, but it was closely related to birds.1

迷思破解王

迷思： Some people think all troodontids were meat-eaters with serrated teeth.

真相： Byronosaurus had smooth teeth without serrations, so it may have been an omnivore or herbivore, not a pure carnivore.1

給恐龍專家

學名: Byronosaurus
命名者: Norell et al. 20003
類群: 迅猛龍類
科 / 演化支: Troodontidae3
分類: Theropoda > Troodontidae3
岩石的年代: 84 到 72 百萬年 (Campanian)3
岩層: Djadokhta3
國家: 蒙古3
化石紀錄: The Paleobiology Database 收錄 3 筆3
發現: Byronosaurus was named in 2000 by Mark Norell, Peter Makovicky, and James Clark. The first skeleton was found in 1993 at Ukhaa Tolgod, Mongolia, and a second skull was found in 1996 at Bolor's Hill.1
仍有爭議: Scientists are not sure what Byronosaurus ate. Its smooth teeth suggest it might have been an omnivore or herbivore, but some experts think it was still a carnivore.1