| Capitanium | Capitanian |
| Apiarium | apiary beeyard |
| Lapidarium | lapidarium |
| Capstan | capstan |
| Dapingium | Dapingian |
| Kapitalist | capitalist |
| Kapitän | captain aviator pilot Kapitän |
| Unobtanium | unobtainium |
| Catania | Catania |
| Cenomanium | Cenomanian |
| Cranium | cranium |
| Bartonium | Bartonian |
| Ladinium | Ladinian |
| Santonium | Santonian |
| Titonium | Tithonian |
| Actinium | actinium |
| Californium | californium |
| Neptunium | neptunium |
| Aptium | Aptian |
| Coniacium | Coniacian |