恐龍卡第 0632 張，共 2 027 張

Eucoelophysis

名字的意思： “true hollow form”1

吃：植物有喙的草食恐龍三疊紀晚期

Eucoelophysis was a small, plant-eating dinosaur that lived about 212 million years ago in what is now New Mexico. It had a beak and walked on two legs, looking a bit like a long-legged lizard. Scientists once thought it was a meat-eater, but now they know it munched on plants.1 2

生存年代

227 到 201 百萬年前2

三疊紀晚期

化石發現地

New Mexico, USA (Petrified Forest Formation, Chinle Group)1 2

長度

2 到 3 m (6.6 到 9.8 ft)1

高度

0.94 m (3.1 ft)

估計值

最高速度

時速約 46 公里（29 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 3 隻狗從鼻子接到尾巴一樣長跟 17 根香蕉頭尾相接一樣長能在 7.8 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Eucoelophysis 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)

Eucoelophysis 時速約 46 公里 (29 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

Eucoelophysis was named in 1999 by paleontologists Robert Sullivan and Spencer Lucas.1 2

Its fossils were first found in the 1880s by David Baldwin, but were mixed up with another dinosaur called Coelophysis.1

For a long time, scientists thought Eucoelophysis was a meat-eating dinosaur, but in 2007 a study showed it was actually a plant-eater related to Silesaurus.1

Eucoelophysis lived during the Late Triassic period, about 212 million years ago.1

The name Eucoelophysis means 'true hollow form' because it was thought to be the real Coelophysis at first.1

Only a few bones of Eucoelophysis have been found, including parts of the hip and hind legs.1

Eucoelophysis is now placed in a group called Silesauridae, which are close relatives of dinosaurs.1

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

?Was Eucoelophysis a dinosaur?

No, it is not a dinosaur. Scientists now place it in a group called Silesauridae, which are close relatives of dinosaurs but not true dinosaurs.1

?How big was Eucoelophysis?

The exact size is not known from the few bones found, but it was a small animal, probably about the size of a modern turkey or a small dog.1

?What did Eucoelophysis eat?

It was a plant-eater. It had a beak and munched on plants, unlike the meat-eating dinosaurs it was once mistaken for.1

?When did Eucoelophysis live?

It lived during the Late Triassic period, about 212 million years ago, in what is now New Mexico.1

迷思破解王

迷思： Eucoelophysis was a meat-eating dinosaur like Coelophysis.

真相： Eucoelophysis was actually a plant-eater, as shown by its beak and hip bones.1 2

給恐龍專家

學名: Eucoelophysis
命名者: Sullivan and Lucas 19992
類群: 有喙的草食恐龍
科 / 演化支: Silesauridae2
分類: Ornithischia2
岩石的年代: 227 到 201 百萬年 (Norian / Rhaetian)2
岩層: Chinle2
國家: 美國2
化石紀錄: The Paleobiology Database 收錄 2 筆2
發現: Eucoelophysis was named in 1999 by Robert Sullivan and Spencer Lucas based on a skeleton found in New Mexico. The species name baldwini honors David Baldwin, who collected the first fossils in the 1880s.1 2
仍有爭議: Scientists are still debating whether some fossils from the Snyder Quarry and Hayden Quarry belong to Eucoelophysis or to other animals.1