恐龍卡第 0677 張，共 2 027 張

Fukuivenator

名字的意思： “Fukui hunter”1

吃：每樣都來一點奇特的羽毛恐龍白堊紀早期

Fukuivenator was a small, fast dinosaur that lived in what is now Japan. It had a strange mix of features from different dinosaur groups, making it a real puzzle for scientists. This dinosaur might have eaten both plants and meat, like a modern raccoon.1 2

生存年代

121 到 113 百萬年前5

白堊紀早期

化石發現地

Fukui Prefecture, Japan1 3

長度

2.45 m (8 ft)4 1 2

體重

25 kg (55 lb)4 1 2

高度

1 m (3.3 ft)

估計值

最高速度

時速約 27 公里（17 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 6 隻家貓一樣重

跟 5 隻家貓從鼻子接到尾巴一樣長跟 14 根香蕉頭尾相接一樣長跟 5 顆西瓜一樣重能在 13 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Fukuivenator 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)

Fukuivenator 時速約 27 公里 (17 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

Fukuivenator is known from a nearly complete skeleton, making it the most complete non-bird dinosaur ever found in Japan.1 2

Its inner ear was shaped like a mix between those of birds and other dinosaurs, showing a step in the evolution of bird hearing.1 2

Fukuivenator had a very large nostril opening, almost as tall as another hole in its skull called the antorbital fenestra.1

This dinosaur had different kinds of teeth in its mouth, a feature called heterodonty. Some teeth were small and spatula-shaped, while others were large and curved.1

Scientists cannot place Fukuivenator into any known dinosaur group. It seems to be a very early member of the maniraptoran family, but with a unique mix of traits.1 2

The fossil was found in 2007 in a quarry near the Sugiyama River in Katsuyama, Japan. It was buried in rock that is about 121 to 113 million years old.1 3

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

?How big was Fukuivenator?

Fukuivenator was about 2.45 metres (8.0 feet) long and weighed around 25 kilograms (55 pounds).4 1

?What did Fukuivenator eat?

Fukuivenator probably ate both plants and meat, like a modern raccoon. Its teeth and long neck suggest it was at least omnivorous, maybe even mostly herbivorous.4 1

?Where was Fukuivenator found?

Fukuivenator was found in 2007 in a quarry near the Sugiyama River in Katsuyama, Japan. The skeleton is the most complete non-bird dinosaur fossil ever found in Japan.4 1

?When did Fukuivenator live?

Fukuivenator lived during the Early Cretaceous, about 127 to 115 million years ago. That's based on radiometric dating of nearby rocks.4

?Did Fukuivenator have feathers?

No direct feather fossils are known for Fukuivenator, but it was a coelurosaurian theropod, a group that includes feathered dinosaurs. So it likely had feathers, though we can't be sure.4 1

?Why is Fukuivenator called a paradox?

Its species name 'paradoxus' means 'paradoxical' because it has a strange mix of features from different dinosaur groups, making it hard to classify. It's a puzzle for scientists.4 1

給恐龍專家

學名: Fukuivenator
命名者: Azuma et al. 20165
類群: 奇特的羽毛恐龍
科 / 演化支: Therizinosauria5
分類: Theropoda > Therizinosauria5
岩石的年代: 121 到 113 百萬年 (Aptian)5
岩層: Kitadani5
國家: 日本5
化石紀錄: The Paleobiology Database 收錄 1 筆5
發現: Fukuivenator was named in 2016 by a team led by Yoichi Azuma. The fossil was found in the summer of 2007 in the Kitadani Dinosaur Quarry in Fukui, Japan. It was a nearly complete skeleton, the most complete non-bird dinosaur from Japan.1 3
仍有爭議: Scientists are not sure which dinosaur group Fukuivenator belongs to. It has features of dromaeosaurids, therizinosaurs, and other groups, but its exact family tree is still debated.1 2