| Start | End | Erathem | Sub-Era | System | Sub-Sy | Series | Sub-Ser | Stage |
| Age | Age | them: | stem | ies |
| (Million Years) |
| 130 | 114 | MM | Mesozoic | K | Cretaceous | KL | Lower Cretaceous | KY | Neocomian |
| 119 | 114 | KH | Hauterivian |
| 126 | 119 | KV | Valanginian |
| 130 | 126 | KN | Berriasian |
| 130 | 126 | KZ | Ryazanian |
| 130 | 128 | KK | Purbeckian |
| 204 | 130 | J | Jurassic |
| 150 | 130 | JU | Upper Jurassic |
| 135 | 130 | JP | Portlandian |
| 138 | 130 | JV | Volgian |
| 140 | 135 | JK | Kimmeridgian(onshor |
| 140 | 138 | JD | Kimmeridgian(offshor |
| 150 | 140 | JO | Oxfordian |
| 150 | 140 | JR | Corallian |
| 181 | 150 | JM | Middle Jurassic |
| 158 | 150 | JC | Callovian |
| 170 | 158 | JN | Bathonian |
| 178 | 170 | JB | Bajocian |
| 181 | 178 | JA | Aalenian |
| 204 | 181 | JL | Lower Jurassic |
| 189 | 181 | JT | Toarcian |
| 195 | 189 | JE | Pliensbachian |
| 201 | 195 | JS | Sinemurian |
| 204 | 201 | JH | Hettangian |
| 290 | 204 | PT | Permo Triassic |
| 245 | 204 | T | Triassic |
| 229 | 204 | TU | Upper Triassic |
| 212 | 204 | TR | Rhaetian |
| 220 | 212 | TN | Norian |
| 229 | 220 | TC | Carnian |
| 239 | 229 | TM | Middle Triassic |
| 233 | 229 | TD | Ladinian |
| 239 | 233 | TA | Anisian |
| 245 | 239 | TL | Lower Triassic |
| 245 | 239 | TS | Scythian |
| 530 | 245 | PP | Palaeozoic |
| 400 | 245 | UP | Upper Palaeozoic |
| 290 | 245 | P | Permian |
| 258 | 245 | PU | Upper Permian(Zechstein) |
| 250 | 245 | PR | Tatarian |
| 258 | 250 | PK | Kazanian |
| 290 | 258 | PL | Lower Permian(Rotliege.) |
| 290 | 258 | PN | Autunian |
| 265 | 258 | PG | Kungurian |
| 280 | 265 | PA | Artinskian |
| 290 | 280 | PS | Sakmarian |
| 360 | 290 | C | Carboniferous |
| 326 | 290 | CU | Silesian(U.Carbonifer.) |
| 305 | 290 | CS | Stephanian |
| 315 | 305 | CW | Westphalian |
| 308 | 305 | CD | Westphalian D |
| 311 | 308 | CP | Westphalian C |
| 313 | 311 | CB | Westphalian B |
| 315 | 313 | CA | Westphalian A |
| 326 | 315 | CN | Namurian |
| 317 | 315 | RC | Namurian C |
| 317 | 315 | CY | Yeadonian |
| 319 | 317 | BN | Namurian B |
| 318 | 317 | CZ | Marsdenian |
| 319 | 318 | CK | Kinderscoutian |
| 326 | 319 | AN | Namurian A |
| Page 2 of 4 | 07/07/2004 |