| Order | Type | Group | Form-ati | Member | Description | Upper | Lower | Basin |
| By No. | on | Age | Age |
| 2236.0 | SED | TRIG | SKAG | SKA2 | Skagerrak 2 | T | CNSB |
| 2237.0 | SKA1 | Skagerrak 1 |
| 2238.0 | SKSH | Skagerrak Shale |
| 2239.0 | SKGA | Skagerrak Unit A | ESHB |
| 2240.0 | SKGB | Skagerrak Unit B |
| 2241.0 | SKGC | Skagerrak Unit C |
| 2242.0 | SKGD | Skagerrak Unit D |
| 2243.0 | JOAS | Joanne Sandstone | TU | CNSB |
| 2244.0 | JOA4 | Joanne Unit 4 | T |
| 2245.0 | JOA3 | Joanne Unit 3 |
| 2246.0 | JOA2 | Joanne Unit 2 |
| 2247.0 | JOA1 | Joanne Unit 1 |
| 2248.0 | JOAC | Joanne Clay |
| 2249.0 | JUDY | Judy Formation |
| 2250.0 | JUAC | Judy Anhydritic Claystone | TD | TC |
| 2251.0 | JUAD |
| 2252.0 | JUSS | Judy Sands | TA | TD |
| 2253.0 | JULS | Judy Lower Sands | TS |
| 2254.0 | JUD5 | Judy Unit 5 | T |
| 2255.0 | JUD4 | Judy Unit 4 |
| 2256.0 | JUCL | Judy Claystone | TU |
| 2257.0 | DUNP | Dunrobin Pier | TR | HAPL EORB GRSP |
| 2258.0 | CHER | Cherty Rock |
| 2259.0 | LOSS | Lossiemouth Sandstone | TD | TN |
| 2260.0 | BGHD | Burghead Sandstone | TS | TC |
| 2261.0 | HPMN | Hopeman Sandstone |
| 2262.0 | CORM | Cormorant | TD | TU | NONS |
| 2263.0 | UCO1 | Upper Cormorant 1 | T | ESHB |
| 2264.0 | UCO2 | Upper Cormorant 2 |
| 2265.0 | LCOR | Lower Cormorant Formation |
| 2266.0 | COSM | Cormorant Sand Member | NONS |
| 2267.0 | TRSS | Triassic Sandstone | SVIG |
| 2268.0 | TRSH | Triassic Shale |
| 2269.0 | WINT | Winterton | TR | SONS |
| 2270.0 | RHST | Rhaetic Sandstone Member | TU |
| 2271.0 | LSTF | Lilstock | TR | NOCH |
| 2272.0 | WBY | Westbury |
| 2273.0 | PNG | Penarth | CARD |
| 2274.0 | RHSQ | Rhaetic Sandstone Equivalent | T | SONS |
| 2275.0 | UPNG | Upper Penarth Group |
| 2276.0 | LSTE | Lilstock Formation Equivalent | TR | CARD |
| 2277.0 | WBYE | Westbury Formation Equivalent |
| 2278.0 | WILL | White Lias Limestone | WSXB |
| 2279.0 | PENL | Penarth Limestone | EMSH CECH |
| 2280.0 | PNGS | Penarth Sandstone Member | TU | SONS |
| 2281.0 | WLI | White Lias | TR | WCHB ANPA CARD |
| 2282.0 | CWB | Cotham and Westbury Beds | WCHB ANPA |
| 2283.0 | CTM | Cotham Member | TU | WSXB |
| 2284.0 | TWYB | Twyford Beds | TR |
| 2285.0 | VARM | Variegated Marl | T |
| 2286.0 | LPMB | Langport Member | TU |
| 2287.0 | URML | Upper Red Marl | T |
| 2288.0 | AHYM | Anhydrite Marker |
| 2289.0 | MRML | Middle Red Marl |
| 2290.0 | MHLU | Massive Halite Unit |
| 2291.0 | LRML | Lower Red Marl |
| 2292.0 | SAML | Saliferous Marl |
| 2293.0 | SAME | Saliferous Marl Equivalent |
| 2294.0 | USME | Upper Saliferous Marl Eqv. | TU |
| 2295.0 | LSME | Lower Saliferous Marl Eqv. |
| 2296.0 | ANSL | Anhydritic Sandstone | T |
| 2297.0 | HLE | Halite Equivalent |
| 2298.0 | WTRE | Waterstones Equivalent |
| Page 37 of 60 | 07/07/2004 |