| NEOGENE | Later division of the Tertiary period of the Cenozoic era, subdivided into the Miocene and Pliocene epochs (7) |
| EOCENE | Second epoch of the Tertiary period of geological time (6) |
| EPOCHS | The Miocene and Pliocene |
| STONEAGE | Prehistoric era subdivided into the Paleolithic, Mesolithic and Neolithic periods (5,3) |
| NEOCENE | Division of the Tertiary period |
| MIOCENE | Epoch between the Oligocene and Pliocene (7) |
| TERTIARY | Old term for the period of geological time that constituted the Paleogene and the Neogene periods of the Cenozoic Era (8) |
| PLIOCENE | Second of the two epochs comprising the Neogene period, between the Miocene and the Pleistocene (8) |
| MASTODON | Extinct elephant-like mammal of the Miocene and Pleistocene epochs; from Greek, 'breast tooth' (8) |
| OLIGOCENE | Third epoch of the Paleogene period, succeeded by the Miocene approximately 23 million years ago (9) |
| HOGWASH | Grid that is further subdivided into nine 3x3 boxes. To solve the puzzle, each of the rows, columns and 3x3 boxes should contain all the digits from 1 to 9. The solution to this puzzle will be publish |
| HEBRIDES | Set of islands off the west coast of Scotland subdivided into Inner and Outer groups (8) |
| ANNAS | Former monetary units of India and Pakistan, subdivided into 12 pies (5) |
| IBAAN | Municipality in the Province of Batangas, Philippines, politically subdivided into 26 barangays |
| DOMAIN | Highest level of classification in the taxonomic system, subdivided into kingdoms (6) |
| APES | They sprang up in the Miocene |
| EPOCH | Miocene or Pliocene |
| PESO | Currency of the Philippines, subdivided into 100 centavos (4) |
| AEON | Division of geological time which is subdivided into eras (4) |
| RIEL | Main currency unit of Cambodia, subdivided into 10 kak or 100 sen (4) |
