网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Early Triassic epoch
释义

Early Triassic epoch

英语百科

Early Triassic

Sandstone from the Early Triassic Epoch
Early Triassic brittle stars (echinoderms)
Early Triassic marine predators

The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 252.17 ± 0.06 Ma and 247.2 Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era and is divided into the Induan and Olenekian ages.

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/21 15:04:08