Astronomy   View all facts   Glossary   Help

physical phenomena > event > era > geological era > precambrian era > middle precambrian period

middle precambrian period comparison table

Subject	is a kind of	has duration	has start time
precambrian era	geological era	2500 million years	3100 million years ago
middle precambrian period	precambrian era	million years	million years ago

Next precambrian era: upper precambrian period    Up: precambrian era    Previous precambrian era: lower precambrian period