FRASNIUM
| 8 |
GELASIUM
| 8 |
GIVETIUM
| 8 |
GONDWANA
| 8 |
GORSTIUM
| 8 |
GZHELIUM
| 8 |
HADAIKUM
| 8 |
HOLOZAEN
| 8 |
HOMERIUM
| 8 |
INDUSIUM
| 8 |
KAMBRIUM
| 8 |
LADINIUM
| 8 |
LANGHIUM
| 8 |
LUTETIUM
| 8 |
PALEOGEN
| 8 |
PLIOZAEN
| 8 |
QUARTAER
| 8 |
RHAETIUM
| 8 |
RHYACIUM
| 8 |
RUPELIUM
| 8 |
SANDBIUM
| 8 |
SIDERIUM
| 8 |
TERTIAER
| 8 |
TOARCIUM
| 8 |
TURONIUM
| 8 |
YPRESIUM
| 8 |
ZANCLEUM
| 8 |
ALGONKIUM
| 9 |
ARCHAIKUM
| 9 |
BARREMIUM
| 9 |
BARTONIUM
| 9 |
BATHONIUM
| 9 |
CALABRIUM
| 9 |
CALLOVIUM
| 9 |
CALYMMIUM
| 9 |
CAMPANIUM
| 9 |
CONIACIUM
| 9 |
DAPINGIUM
| 9 |
ERDEPOCHE
| 9 |
ERDURZEIT
| 9 |
FAMENNIUM
| 9 |
FORMATION
| 9 |
FORTUNIUM
| 9 |
KUNGURIUM
| 9 |
LOPINGIUM
| 9 |
LUDLOWIUM
| 9 |
MESSINIUM
| 9 |
MOSKOVIUM
| 9 |
NEOZOIKUM
| 9 |
OBERDEVON
| 9 |
OBERSILUR
| 9 |
OLENEKIUM
| 9 |
OLIGOZAEN
| 9 |
OROSIRIUM
| 9 |
OXFORDIUM
| 9 |
PALAEOGEN
| 9 |
PALEOZAEN
| 9 |
PANNONIUM
| 9 |
PRIDOLIUM
| 9 |
SAKMARIUM
| 9 |
SANTONIUM
| 9 |
TARANTIUM
| 9 |
TELYCHIUM
| 9 |
THANETIUM
| 9 |
TITHONIUM
| 9 |
TORTONIUM
| 9 |
VALANGIUM
| 9 |
ZECHSTEIN
| 9 |
AQUITANIUM
| 10 |
ARCHAEIKUM
| 10 |
ARTINSKIUM
| 10 |
BASHKIRIUM
| 10 |
BERRIASIUM
| 10 |
CAPITANIUM
| 10 |
CENOMANIUM
| 10 |
CRYOGENIUM
| 10 |
EDIACARIUM
| 10 |
ERDNEUZEIT
| 10 |
GOTLANDIUM
| 10 |
GUZHANGIUM
| 10 |
HETTANGIUM
| 10 |
HIRNANTIUM
| 10 |
KANOZOIKUM
| 10 |
KASIMOVIUM
| 10 |
KREIDEZEIT
| 10 |
LOCHKOVIUM
| 10 |
LUDFORDIUM
| 10 |
MESOZOIKUM
| 10 |
OBERKARBON
| 10 |
OBERKREIDE
| 10 |
ORDOVICIUM
| 10 |
ORDOVIZIUM
| 10 |
PALAEOZAEN
| 10 |
PIACENZIUM
| 10 |
PRIABONIUM
| 10 |
RHUDDANIUM
| 10 |
SEELANDIUM
| 10 |
SINEMURIUM
| 10 |
STATHERIUM
| 10 |
UNTERDEVON
| 10 |