| Answer | Crossword Clue |
|---|---|
| EOCENE | Dawn-of-mammals epoch |
| EOCENE | Epoch that saw the dawn of modern mammals |
| EOCENE | Epoch of modern birds and mammals |
| EOCENE | Epoch that saw the rise of mammals |
| EOCENE | Epoch characterized by the rise of mammals |
| EOCENE | Epoch that saw the advent of mammals |
