| English | eng-000 |
| paleozoic era | |
| català | cat-000 | paleozoic |
| čeština | ces-000 | paleozoikum |
| čeština | ces-000 | prvohory |
| 普通话 | cmn-000 | 古生代 |
| Hànyǔ | cmn-003 | Gǔshēngdài |
| dansk | dan-000 | Palæozoikum |
| Deutsch | deu-000 | Paläozoikum |
| ελληνικά | ell-000 | Παλαιοζωική εποχή |
| English | eng-000 | Palaeozoic |
| English | eng-000 | Paleozoic |
| English | eng-000 | palaeozoic era |
| Esperanto | epo-000 | Paleozoiko |
| français | fra-000 | paléozoïque |
| hrvatski | hrv-000 | paleozoik |
| íslenska | isl-000 | Fornlífsöld |
| italiano | ita-000 | Era Primaria |
| italiano | ita-000 | Paleozoico |
| Lëtzebuergesch | ltz-000 | Paläozoikum |
| Lëtzebuergesch | ltz-000 | Äerdaltertum |
| Nederlands | nld-000 | Paleozoïcum |
| polski | pol-000 | paleozoik |
| português | por-000 | Paleozóico |
| russkij | rus-001 | paleosoj |
| russkij | rus-001 | paljeosojskaja era |
| slovenčina | slk-000 | paleozoikum |
| slovenčina | slk-000 | prvohory |
| slovenščina | slv-000 | paleozoik |
| español | spa-000 | paleozoico |
| svenska | swe-000 | paleozoikum |