| English | eng-000 |
| subclass Prototheria | |
| ελληνικά | ell-000 | Prototheria |
| ελληνικά | ell-000 | υποδιαίρεση Prototheria |
| English | eng-000 | Prototheria |
| suomi | fin-000 | Prototheria |
| suomi | fin-000 | Prototheria-alaluokka |
| français | fra-000 | Protothérien |
| français | fra-000 | prototheria |
| français | fra-000 | protothérien |
| français | fra-000 | protothériens |
| hrvatski | hrv-000 | podrazred Prototheria |
| hrvatski | hrv-000 | podrazred prasisavaca |
| hrvatski | hrv-000 | prasisavci |
| Latina Nova | lat-003 | subclass Prototheria |
| polski | pol-000 | prassaki |
| polski | pol-000 | ssaki jajorodne |
| português | por-000 | Prototheria |
| slovenščina | slv-000 | prototheria |
| español | spa-000 | Prototheria |
| español | spa-000 | subclase Prototheria |
| ภาษาไทย | tha-000 | ชั้นย่อยโพรโตทีเรีย |