| español | spa-000 |
| Prototheria | |
| български | bul-000 | Първични бозайници |
| català | cat-000 | Prototeri |
| čeština | ces-000 | vejcorodí |
| 普通话 | cmn-000 | 原兽亚纲 |
| eesti | ekk-000 | Ürgimetajad |
| ελληνικά | ell-000 | Prototheria |
| ελληνικά | ell-000 | Πρωτοθηρία |
| ελληνικά | ell-000 | υποδιαίρεση Prototheria |
| English | eng-000 | Prototheria |
| English | eng-000 | subclass 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 |
| magyar | hun-000 | Tojásrakó emlősök |
| italiano | ita-000 | Prototheria |
| 한국어 | kor-000 | 원수아강 |
| Latina Nova | lat-003 | Prototheria |
| lengua lígure | lij-000 | Prototheria |
| latviešu | lvs-000 | Pirmzīdītāji |
| Nederlands | nld-000 | Prototheria |
| polski | pol-000 | Ssaki jajorodne |
| polski | pol-000 | prassaki |
| polski | pol-000 | ssaki jajorodne |
| português | por-000 | Prototheria |
| русский | rus-000 | Первозвери |
| slovenščina | slv-000 | prototheria |
| español | spa-000 | subclase Prototheria |
| ภาษาไทย | tha-000 | ชั้นย่อยโพรโตทีเรีย |
| ภาษาไทย | tha-000 | โพรโทเธอเรีย |
| 廣東話 | yue-000 | 原獸亞綱 |