| Answer | Crossword Clue |
|---|---|
| EPOCH | A notable period of history |
| ERA | Notable period of history |
| ERA | Notable period in history |
| ERAL | Of a notable period |
| silurian | noting or pertaining to a period of the Paleozoic Era, occurring from 425 to 405 million years ago, notable for the advent of air-breathing animals and terrestrial plants |
| ENDOFANERA | When a notable period concludes |
