| English | eng-000 |
| Palaeozoic era | |
| 普通话 | cmn-000 | 古生代 |
| English | eng-000 | Paleozoic |
| English | eng-000 | Paleozoic era |
| English | eng-000 | Primary era |
| American English | eng-004 | Paleozoic era |
| American English | eng-004 | the Paleozoic |
| British English | eng-005 | Palaeozoic era |
| British English | eng-005 | the Palaeozoic |
| magyar | hun-000 | földtörténeti ókor |
| magyar | hun-000 | paleozoikum |
| олык марий | mhr-000 | палеозой |