恐龍卡第 0708 張，共 2 027 張

Genyodectes

名字的意思： “jaw bite”1

吃：肉肉食恐龍白堊紀早期

Genyodectes was a meat-eating dinosaur with a big mouth full of sharp teeth. It lived in South America during the Early Cretaceous period, about 112 million years ago. This dinosaur was one of the first meat-eating dinosaurs ever found on that continent!1 2

生存年代

113 到 100 百萬年前4

白堊紀早期

化石發現地

Chubut Province, Argentina1 2

長度

最多 6.25 m (21 ft)1

體重

最多 790 kg (1,700 lb)1

高度

最多 1.98 m (6.5 ft)3

最高速度

時速約 38 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 40 隻狗一樣重

跟 6 隻狗從鼻子接到尾巴一樣長跟 35 根香蕉頭尾相接一樣長跟 160 顆西瓜一樣重跟 42 個幼兒園小朋友一樣重跟 25 個小學生一樣重能在 9.5 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Genyodectes 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)

Genyodectes 時速約 38 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

Genyodectes had four teeth in its upper jaw (premaxilla), while its close relative Ceratosaurus had only three.1

The only known fossil of Genyodectes is a partial snout with teeth, found in the Cerro Barcino Formation of Argentina.1 2

For a long time, scientists thought Genyodectes might be a tyrannosaur or an abelisaur, but now they think it was a ceratosaur, closer to Ceratosaurus.1

Genyodectes was the second non-bird dinosaur ever described from South America, after Loncosaurus.1

The name Genyodectes means 'jaw bite' in Greek, from 'genys' (jaw) and 'dektes' (bite).1

The teeth of Genyodectes were arranged in an overlapping pattern, like shingles on a roof.1

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

?How big was Genyodectes?

About 6.25 metres long and weighed around 790 kg. That is roughly as long as a large car.1

?What did Genyodectes eat?

It was a meat-eater, like other theropod dinosaurs. Its long, sharp teeth were perfect for biting and holding onto prey.1

?Did Genyodectes have feathers?

Nobody knows for sure, because only its snout and teeth have been found. Many meat-eating dinosaurs related to it may have had feathers, but there is no direct evidence for Genyodectes.1

?Where did Genyodectes live?

It lived in what is now Argentina, South America, about 112 million years ago during the Early Cretaceous period.1

?Is Genyodectes a dinosaur?

Yes, it is a dinosaur. It was a theropod, a group of mostly meat-eating dinosaurs that walked on two legs.1

?How many teeth did Genyodectes have?

It had four teeth in the front part of its upper jaw (the premaxilla), while its relative Ceratosaurus had only three. The total number of teeth is not known because only part of the skull was found.1

迷思破解王

迷思： Some people thought Genyodectes might be the same as Abelisaurus.

真相： Scientists now think Genyodectes is a different dinosaur, a ceratosaur, not an abelisaur.1

給恐龍專家

學名: Genyodectes
命名者: Woodward 19014
類群: 肉食恐龍
科 / 演化支: Ceratosauria4
分類: Theropoda > Ceratosauria4
岩石的年代: 113 到 100 百萬年 (Albian)4
岩層: Cerro Barcino4
國家: 阿根廷4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: English paleontologist Sir Arthur Smith Woodward named Genyodectes in 1901. The only fossil, a partial skull, was found at Cañadón Grande in Chubut, Argentina.1 2
仍有爭議: Scientists are still not sure exactly where in the Cerro Barcino Formation the Genyodectes fossil came from, because the original records were lost.1