| Order | Type | Group | Form-ati | Member | Description | Upper | Lower | Basin |
| By No. | on | Age | Age |
| 863.00 | SED | GTGS | GLTC | LGTC | Lower Gault Clay | KP | KA | WSXB |
| 864.00 | BASB | Basal Beds | KL |
| 865.00 | GTCE | Gault Clay Equivalent | KA | KE | CARD |
| 866.00 | ATHC | Atherfield Clay | WLDB |
| 867.00 | W | Wealden | KV | KP | WCHB ANPA CARD |
| 868.00 | WLDN | Wealden Formation | KH | CECH |
| 869.00 | HSTB | Hastings Beds | WLDB |
| 870.00 | ASHS | Ashdown Sands |
| 871.00 | FLTC | Fairlight Clay | KL | WSXB |
| 872.00 | FAGS | Fairlight Sand | KV | KB | WLDB |
| 873.00 | WDC | Wadhurst Clay | KH |
| 874.00 | TWS | Tunbridge Wells Sands | KL |
| 875.00 | LTWS | Lower Tunbridge Wells Sands | KV | KH |
| 876.00 | GRC | Grinstead Clay |
| 877.00 | UTWS | Upper Tunbridge Wells Sands |
| 878.00 | ASHB | Ashdown Beds | KN | KB |
| 879.00 | WC | Weald Clay | KH |
| 880.00 | WCS | Wealden Shales |
| 881.00 | WEQ | Wealden Equivalent | KP | CARD |
| 882.00 | CSBL | Clays Ssts Brecciated Lignites | KZ | KB |
| 883.00 | SMSB | Ssts Msts Silts Basalts Tuffs | KH | KE | STCR COCB COHI |
| 884.00 | CRKN | Cromer Knoll | JV | KL | SONS CNSB MOFI |
| 885.00 | VICK | Victory Formation | KA | WESH |
| 886.00 | NEPF | Neptune Formation | KH | KB |
| 887.00 | NPSS | Sandstone Unit |
| 888.00 | CRUI | Cruiser Formation | KE | KA |
| 889.00 | RSOV | Royal Sovereign Formation | KA |
| 890.00 | LONF | Long Forties Clay Formation | KL | CNSB |
| 891.00 | LCLS | Lower Cretaceous Limestone | ESHB |
| 892.00 | APCA | Aptian Carbonate | KP | MOFI |
| 893.00 | SAMR | Aptian Seismic Marker | WYGG |
| 894.00 | KASM | Albion Shale Member | KA |
| 895.00 | BOSN | Bosun Sand Member | KB | KA |
| 896.00 | KPAS | Lower Cretaceous A Sand | KP | MOFI |
| 897.00 | SHIR | Shirley Formation | KA | SVIG |
| 898.00 | SHSM | Shirley Sandstone Member | CNSB |
| 899.00 | RIKM | Red IntraCretaceous Marker | WYGG |
| 900.00 | VAMA | Valanginian Marl | KZ | KH |
| 901.00 | BAMR | Barremian Marker | KB |
| 902.00 | BASL | Basal Limestone | KL | NONS |
| 903.00 | CALU | Calcareous Unit |
| 904.00 | REDC | Red Claystone |
| 905.00 | LCRM | Lower Cretaceous Red Marls | SONS |
| 906.00 | KLCL | Lower Cretaceous Clays |
| 907.00 | TRNS | Transition Beds | KZ | INMF ESHB |
| 908.00 | AMF | Alwyn Marl Formation | KB | KA | NONS |
| 909.00 | ALMQ | Alwyn Marl Equivalent |
| 910.00 | CKMF | Cromer Knoll Marl Formation | KL | CNSB |
| 911.00 | LCEM | Lower Cretaceous E-Log Marker | KA | WYGG |
| 912.00 | UTVI | Utvik Formation | KL | MOFI |
| 913.00 | SOLA | Sola Formation |
| 914.00 | KLDA | Kilda Member | K |
| 915.00 | USOL | Upper Sola Member | KA | CNSB |
| 916.00 | LSOL | Lower Sola Member | KP |
| 917.00 | ASM | Aptian Sand Member | KL | SVIG |
| 918.00 | BRIT | Britannia Sandstone Formation | KP | CNSB |
| 919.00 | SOL4 | Sola S4 | KA | NONS |
| 920.00 | SOL3 | Sola S3 |
| 921.00 | SOL2 | Sola S2 | KP |
| 922.00 | SOL1 | Sola S1 |
| 923.00 | SOLS | Sola Sandstone Member |
| 924.00 | GYRO | Gyrodinaeformis Member | KA | CNSB |
| 925.00 | $$ | LEEK | Leek Member |
| Page 15 of 60 | 07/07/2004 |