| 释义 |
Examples:Eocene (geological epoch from 55m-34m years ago)—Oligocene (geological epoch from 34m-24m years ago)—Palaeocene (geological epoch from 65m-55m years ago)—lower Cambrian series (geological strata from approx 530 million years ago)—Miocene (geological epoch from 24m-5m years ago)—Pliocene (geological epoch from 5m-2m years ago)—Pleistocene (geological epoch from 2m years ago, covering the most recent ice ages)— |