| phanerozoic geology(noun, name, volcano, geology) |
| Aalenian(noun, geology, history, age) |
| Albian(noun, geology, history, age) |
| Anisian(noun, geology, history, age) |
| Aptian(noun, geology, history, age) |
| Aquitanian(noun, geology, history, age) |
| Bajocian(noun, geology, history, age) |
| Barremian(noun, geology, history, age) |
| Bartonian(noun, geology, history, age) |
| Bashkirian(noun, geology, history, age) |
| Bathonian(noun, geology, history, age) |
| Berriasian(noun, geology, history, age) |
| Burdigalian(noun, geology, history, age) |
| Calabrian(noun, geology, history, age) |
| Callovian(noun, geology, history, age) |
| Campanian(noun, geology, history, age) |
| Carnian(noun, geology, history, age) |
| Cenomanian(noun, geology, history, age) |
| Chattian(noun, geology, history, age) |
| Coniacian(noun, geology, history, age) |