恐龍卡第 0082 張，共 2 027 張

Alwalkeria

名字的意思： “for Alick Walker”1

最早的恐龍三疊紀晚期

Alwalkeria was a small, early reptile that lived during the Late Triassic in what is now India. It is known from only a few bones, and scientists are still debating whether it was a dinosaur or a close relative.1

生存年代

237 到 227 百萬年前4

三疊紀晚期

化石發現地

Andhra Pradesh, India (Lower Maleri Formation)1

長度

1.5 m (4.9 ft)2

體重

2 kg 到 5 kg (4 到 11 lb)2

高度

0.4 m (1.3 ft)3

最高速度

時速約 28 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？

牠有多重？

跟 1 隻家貓一樣重

跟 3 隻家貓從鼻子接到尾巴一樣長跟 8 根香蕉頭尾相接一樣長大約跟一隻家貓一樣重跟 42 根香蕉一樣重小到能從椅子底下走過去能在 13 秒內跑完 100 公尺（最快的人類要 9.6 秒）

Alwalkeria 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)

Alwalkeria 時速約 28 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

Alwalkeria was first named Walkeria in 1987, but that name was already used for a tiny sea animal, so it was changed to Alwalkeria in 1994.1

The only known fossil of Alwalkeria is a jumble of bones from different animals, including a skull that may belong to a crocodile relative and leg bones that might be from a dinosaur.1

Alwalkeria lived about 235 to 228 million years ago, during the Carnian stage of the Triassic period.1

The leg bone of Alwalkeria looks a bit like those of early dinosaurs, but some scientists think it might belong to a different group of reptiles called pseudosuchians.1

Alwalkeria is named after British paleontologist Alick Walker, who studied ancient reptiles.1

Because the fossils are so mixed up, scientists are not sure what Alwalkeria ate or how big it was.1

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

?Was Alwalkeria a dinosaur?

Yes, Alwalkeria is classified as a dinosaur. It is a basal saurischian dinosaur that lived during the Late Triassic.1

?How big was Alwalkeria?

Nobody knows for sure. The only known fossil is a jumble of bones from different animals, so scientists cannot tell how big Alwalkeria was.1

?When did Alwalkeria live?

Alwalkeria lived about 235 to 228 million years ago, during the Carnian stage of the Late Triassic period.1

?Where was Alwalkeria found?

Its fossils were found in the Lower Maleri Formation of Andhra Pradesh, India, in rocks that were once an ancient lake or river.1

給恐龍專家

學名: Alwalkeria
命名者: Chatterjee and Creisler 19944
類群: 最早的恐龍
科 / 演化支: Saurischia4
岩石的年代: 237 到 227 百萬年 (Carnian)4
岩層: Maleri4
國家: 印度4
化石紀錄: The Paleobiology Database 收錄 1 筆4
發現: Alwalkeria was discovered in 1974 by Sankar Chatterjee in the Maleri Formation of Andhra Pradesh, India. It was first described in 1987 as Walkeria, but the name was changed in 1994 because it was already taken.1
仍有爭議: Scientists are still debating whether Alwalkeria was a dinosaur, a close relative, or a mix of bones from different animals.1