| Order | Type | Group | Form-ati | Member | Description | Upper | Lower | Basin |
| By No. | on | Age | Age |
| 2488.0 | SED | HAIS | DWDL | INRC | Intermediate Rot Claystone | TL | TM | SONS |
| 2489.0 | MROS | Main Rot Salt |
| 2490.0 | UBNC | Upper Bunter Clay |
| 2491.0 | UDWD | Upper Dowsing Member | TM |
| 2492.0 | DOWM | Middle Dowsing Member | T |
| 2493.0 | LDWD | Lower Dowsing Member | TM |
| 2494.0 | MHLT | Muschelkalk Halite Member |
| 2495.0 | RHLT | Rot Halite Member |
| 2496.0 | RHLC | Clean Halite | TU |
| 2497.0 | REV | Rot Evaporite | TL |
| 2498.0 | URHL | Upper Rot Halite Member | TM | TU |
| 2499.0 | LRHL | Lower Rot Halite Member |
| 2500.0 | ROTC | Rot Clay Member |
| 2501.0 | SOLC | Solling Claystone Member |
| 2502.0 | LRCL | Lower Rot Claystone |
| 2503.0 | BARC | Basal Rot Clay | TL |
| 2504.0 | ROTS | Rot Shale Menber | T |
| 2505.0 | IRMD | Intermediate Rot Mudstone |
| 2506.0 | BUNT | Bunter Undifferentiated | TL |
| 2507.0 | BUMM | Upper Mottled Sandstone Member | T | CHE |
| 2508.0 | BLMM | Lower Mottled Sandstone Member |
| 2509.0 | BNP | Bunter Pebble Beds | TL | WSXB |
| 2510.0 | USHF | Upper Shale Facies | T | SONS |
| 2511.0 | SSF | Sand Facies |
| 2512.0 | LSHF | Lower Shale Facies |
| 2513.0 | BASH | Bunter Anhydrite and Shales | DORS |
| 2514.0 | RTUP | Upper Rot | TS | SONS |
| 2515.0 | ROTU | Rot Undifferentiated | TL |
| 2516.0 | UBUN | Upper Bunter |
| 2517.0 | UBHT | Upper Bunter Halite | T |
| 2518.0 | UBSH | Upper Bunter Shale | TL |
| 2519.0 | MBUN | Middle Bunter |
| 2520.0 | MBUS | Middle Bunter Shale | TM |
| 2521.0 | MBSD | Middle Bunter Sandstone | CNSB |
| 2522.0 | MBGM | Middle Bunter Gypsiferous Marl | T | EMSH |
| 2523.0 | LBUN | Lower Bunter | TL | SONS |
| 2524.0 | LBUC | Lower Bunter Clay | CNSB |
| 2525.0 | LAGC | Lagoonal Clays | SONS |
| 2526.0 | SALM | Saliferous Marls |
| 2527.0 | RGTZ | Rogenstein Zone |
| 2528.0 | BTSE | Bunter Shale Equivalent | TU | SWAP |
| 2529.0 | BABU | Basal Bunter | T | SONS |
| 2530.0 | BACT | Bacton | TL |
| 2531.0 | BNS | Bunter Sandstone | STCR COCB COHI |
| 2532.0 | LBNS | Lower Bunter Sandstone | SONS |
| 2533.0 | BNSE | Bunter Sandstone Equivalent | T | EMSH |
| 2534.0 | BTSH | Bunter Shale | TL | STCR COCB COHI |
| 2535.0 | POOZ | Principal Oolite Zone | T | SONS |
| 2536.0 | LBTS | Lower Bunter Shale Member | TL |
| 2537.0 | RGTN | Rogenstein Member |
| 2538.0 | MBTS | Main Bunter Shale Member | T |
| 2539.0 | BRCK | Brockelschiefer Member | TL |
| 2540.0 | HWSD | Hewett Sandstone |
| 2541.0 | HWSE | Hewett Sandstone Equivalent | P | T | EMSH |
| 2542.0 | BABS | Basal Bunter Siltstone | TL | SONS |
| 2543.0 | TOMS | Main Sand |
| 2544.0 | LGER | Lower Germanic Triassic Group | T |
| 2545.0 | SSEQ | Sherwood Sandstone Equivalent | PU | TL | WSXB |
| 2546.0 | SSG | Sherwood Sandstone | IRSE ANPA CARD |
| 2547.0 | OTSF | Otter Sandstone Formation | T | CECH |
| 2548.0 | BUSA | Budleigh Salterton Formation |
| 2549.0 | SSG0 | Sherwood Sandstone Gp Zone 0 | WSXB |
| 2550.0 | SSG1 | Sherwood Sandstone Gp Zone I |
| Page 41 of 60 | 07/07/2004 |