| Bartonium | Bartonian |
| Tortonium | Tortonian |
| Santonium | Santonian |
| Aeronium | Aeronian |
| Bathonium | Bathonian |
| Harmonium | harmonium reed organ |
| Baronie | barony |
| Barium | barium |
| Barnim | Barnim |
| Baronin | baroness |
| Martyrium | martyrdom |
| Antonius | Antonius |
| Titonium | Tithonian |
| Plutonium | plutonium |
| Ammonium | ammonium |
| Quarkonium | quarkonium |
| Zirkonium | zirconium |
| Fortunium | Fortunian |
| Actinium | actinium |
| Bajocium | Bajocian |