Meaning of Paleoproterozoic | Babel Free

Noun CEFR C2

Definitions

The era from 2,500 Ma to 1,600 Ma, marked by a dramatic increase in atmospheric oxygen.

Ελληνικά Παλαιοπροτεροζωικός

Suomi paleoproterotsooinen varhaisproterotsooinen

Français Paléoprotérozoïque

Polski paleoproterozoik

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.