| Answer | Crossword Clue |
|---|---|
| EOCENE | Epoch of modern birds and mammals |
| jurassic | noting or pertaining to a period of the Mesozoic Epoch, occurring from 190 to 140 million years ago and characterized by an abundance of dinosaurs and the advent of birds and mammals |
| EOCENE | Epoch that saw the dawn of modern mammals |
| EOCENE | Epoch when modern mammals arose |
| EOCENE | Epoch when modern mammals appeared |
| EOCENE | Epoch in which modern mammals emerged |
| EOCENE | Epoch in which modern mammals first emerged |
