恐龍卡第 0595 張，共 2 027 張

Eodromaeus

名字的意思： “dawn runner”1

吃：肉最早的恐龍三疊紀晚期

Eodromaeus was a small, fast dinosaur that lived at the dawn of the dinosaur age. It was one of the earliest theropods, the group that includes T. rex and Velociraptor. This little runner hunted insects and small animals in what is now Argentina.2 1

生存年代

237 到 227 百萬年前3

三疊紀晚期

化石發現地

San Juan Province, Argentina1 3

長度

1.2 m (3.9 ft)1

體重

5 kg 到 10 kg (11 到 22 lb)1

高度

0.32 m (1 ft)

估計值

最高速度

時速約 32 公里（20 英里）

跑步: Sereno et al. 2011

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 2.5 隻家貓一樣重

跟 2.5 隻家貓從鼻子接到尾巴一樣長跟 7 根香蕉頭尾相接一樣長跟 83 根香蕉一樣重小到能從椅子底下走過去能在 11 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Eodromaeus 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)

Eodromaeus 時速約 32 公里 (20 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

Eodromaeus had very fine serrations on its teeth, about nine per millimeter, which helped it cut through meat.2

It was one of the oldest known theropods, living around 230 million years ago during the Late Triassic.1

Eodromaeus had a long, slender body and long legs, making it a fast runner.1

Its name means 'dawn runner' because it lived at the beginning of the dinosaur era and was built for speed.1

The first Eodromaeus fossil was discovered by a volunteer named Jim Murphy in the Ischigualasto Formation of Argentina.2

Eodromaeus had a small skull with large eye openings, suggesting it had good eyesight for hunting.2

It had four fingers on each hand, with sharp claws for grabbing prey.2

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

?How big was Eodromaeus?

Eodromaeus was about 1.2 meters long from nose to tail and weighed around 4.5 to 6.8 kilograms. One study estimated its mass at 7.1 kilograms.1

?How fast could Eodromaeus run?

Paul Sereno estimated that Eodromaeus could run about 32 kilometers per hour. It had long hindlimbs and was built for speed, even among early dinosaurs.1

?What did Eodromaeus eat?

Eodromaeus was a carnivore that ate insects and small animals. It had knife-shaped teeth with fine serrations to cut through meat.1

?When did Eodromaeus live?

Eodromaeus lived about 230 million years ago during the Late Triassic period, specifically in the Carnian stage. Its fossils were found in the Ischigualasto Formation of Argentina.1

?Is Eodromaeus a dinosaur?

Yes, Eodromaeus is a dinosaur. It is a basal theropod, meaning it is one of the earliest members of the group that includes T. rex and Velociraptor.1

?Who discovered Eodromaeus?

Eodromaeus was first discovered in 1996 by paleontologist Ricardo N. Martinez and Earthwatch volunteer Jim Murphy. The species name Eodromaeus murphi honors Murphy.1

給恐龍專家

學名: Eodromaeus
命名者: Martinez et al. 20113
類群: 最早的恐龍
科 / 演化支: Saurischia3
岩石的年代: 237 到 227 百萬年 (Carnian)3
岩層: Ischigualasto3
國家: 阿根廷3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: Eodromaeus was named in 2011 by a team of scientists led by Ricardo N. Martinez. The first skeleton was found by Earthwatch volunteer Jim Murphy in the Ischigualasto Formation of Argentina.1 2
仍有爭議: Scientists are still debating whether Eodromaeus is a true theropod or a very early relative of sauropodomorphs.1