Back Proterosoïkum Afrikaans دهر الطلائع Arabic Proteroza AVK Proterozoy Azerbaijani Пратэразой Byelorussian Протерозой Bulgarian প্রোটেরোজোয়িক Bengali/Bangla Proterozoeg Breton Proterozoik BS Proterozoic Catalan
Proterozoicum[1] est aeon et aeonothema quod abhinc circa 2 500 milliones annorum coepit et abhinc 542 milliones annorum finem habuit.
- ↑ Christof Kuhn, "Etymology of Geological Time Units"