| Order | Type | Group | Form-ati | Member | Description | Upper | Lower | Basin |
| By No. | on | Age | Age |
| 1858.0 | SED | BRNT | BCY4 | BC42 | Cycle IV 2 | JM | NONS |
| 1859.0 | BC43 | Cycle IV 3 |
| 1860.0 | BREW | Brent Reworked Sediments | J |
| 1861.0 | BNTU | Upper Brent | JM | ESHB |
| 1862.0 | BNTM | Middle Brent |
| 1863.0 | BNTL | Lower Brent |
| 1864.0 | BDPS | Delta Platform Sands | JB | JN | NONS |
| 1865.0 | BLMS | Lower Mica Sands | ESHB |
| 1866.0 | BUMS | Upper Mica Sands |
| 1867.0 | UMR1 | Upper Mica R1 | JM |
| 1868.0 | UMR2 | Upper Mica R2 |
| 1869.0 | UMR3 | Upper Mica R3 |
| 1870.0 | LMR4 | Lower Mica R4 |
| 1871.0 | MBNF | Formation M | JB | JN |
| 1872.0 | JBNT | Formation J |
| 1873.0 | GBNT | Formation G | JM |
| 1874.0 | JMFH | Formation H | JN | SVIG |
| 1875.0 | JMFF | Formation F |
| 1876.0 | UBNT | Upper Brent Sand | JB | ESHB |
| 1877.0 | LBNT | Lower Brent Sand | NONS |
| 1878.0 | BLSU | Lower Shaly Unit | JM | ESHB |
| 1879.0 | BACO | Basal Conglomerate | JB |
| 1880.0 | MBNT | Middle Brent Sand | NONS |
| 1881.0 | BBTS | Basal Brent Sand | JM |
| 1882.0 | BSH | Brent Shales | JN |
| 1883.0 | EMER | Emerald Sandstone | JM | ESHB |
| 1884.0 | BRSF | Brent Sand Formation | SVIG |
| 1885.0 | BMSM | Middle Sand Member | JB | ESHB |
| 1886.0 | BLSM | Lower Sand Member |
| 1887.0 | FOVF | Forties Volcanic Formation | JM | SVIG |
| 1888.0 | BBSD | Jurassic Basal Sand | ESHB |
| 1889.0 | BMCS | Jurassic Mica Sand |
| 1890.0 | BMMS | Massive Mica Sand Unit |
| 1891.0 | BMSD | Jurassic Massive Sand |
| 1892.0 | BMSU | Jurassic Middle Shaly Unit |
| 1893.0 | UMSU | Upper Middle Shaly Unit |
| 1894.0 | MSMB | Mid Shale Member |
| 1895.0 | LMSU | Lower Middle Shaly Unit |
| 1896.0 | JSST | Jurassic Sandstone | J |
| 1897.0 | BUS | Jurassic Upper Sand | JM |
| 1898.0 | BSSF | Bathonian Sandstone Formation |
| 1899.0 | JMS | Middle Jurassic Sand | NONS |
| 1900.0 | BLSD | Jurassic Lower Sand Unit |
| 1901.0 | LINN | Linnhe Formation |
| 1902.0 | LIN2 | Linnhe Unit 2 |
| 1903.0 | LIN1 | Linnhe Unit 1 |
| 1904.0 | BERY | Beryl Formation | JH | JC |
| 1905.0 | BERD | Beryl D | JN |
| 1906.0 | BERA | Beryl A |
| 1907.0 | BER5 | Beryl Unit V | JB | JC |
| 1908.0 | BER4 | Beryl Unit IV |
| 1909.0 | BE4B | Beryl IVb | JC |
| 1910.0 | BE4A | Beryl IVa |
| 1911.0 | UPBY | Upper Beryl | J |
| 1912.0 | MIDB | Middle Beryl |
| 1913.0 | LOWB | Lower Beryl |
| 1914.0 | UBSD | Upper Beryl Sandstone |
| 1915.0 | UBS5 | Upper Beryl Sandstone Unit 5 |
| 1916.0 | UBS4 | Upper Beryl Sandstone Unit 4 |
| 1917.0 | UBS3 | Upper Beryl Sandstone Unit 3 |
| 1918.0 | UBS2 | Upper Beryl Sandstone Unit 2 |
| 1919.0 | UBS1 | Upper Beryl Sandstone Unit 1 |
| 1920.0 | LBSD | Lower Beryl Sandstone |
| Page 31 of 60 | 07/07/2004 |