Disc: 1
1. Hadean
2. Eoachaean
3. Paleiarchaean
4. Mesoarchaean
5. Neoarchaean

Disc: 2
1. Siderian
2. Rhyacian
3. Orosirian
4. Statherian
5. Calymmian
6. Ectasian
7. Stenian
8. Tonian
9. Cryogenian