Proterozoic Eon: Geologic Era from 2.5 Billion to 539 Million Years Ago
Explore the Proterozoic Eon, Earth’s longest geologic era from 2.5 billion to 539 million years ago, marked by oxygen rise and early multicellular life.
proterozoic
Explore the Proterozoic Eon, Earth’s longest geologic era from 2.5 billion to 539 million years ago, marked by oxygen rise and early multicellular life.