| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E1 | 191 | | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E1+ | 191 | + | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E2 | 192 | | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E2+ | 192 | + | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E3 | 193 | | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-E3+ | 193 | + | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-F | 198 | | O |
| Mississippian (Lower) | 15 | Wassonville | Washington | WS-F+ | 198 | + | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic | Story | SR-B2 | 215 | | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic | Story | SR-B2+ | 215 | + | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic | Story | SR-C1 | 216 | | T |
| Mississippian (Lower) | 15 | MississippianChalcedonic | Story | SR-C1+ | 216 | + | T |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-C2 | 231 | | T |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-C2+ | 231 | + | T |
| Mississippian (Lower) | 15 | Mississippian Tabular | Story | SR-E | 234 | | O |
| Mississippian (Lower) | 15 | Mississippian Tabular | Story | SR-E+ | 234 | + | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic | Story | SR-G | 236 | | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic | Story | SR-G | 236 | 0 | O |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic Nodular | Story | SR-H | 237 | | S |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-I1 | 238 | | S |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-I1+ | 238 | + | S |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-I2 | 253 | | S |
| Mississippian (Lower) | 15 | Mississippian Tabular Dolomitic | Story | SR-I2+ | 253 | + | S |
| Mississippian (Lower) | 15 | Mississippian Chalcedonic Nodular | Story | SR-L | 242 | | O |
| Mississippian (Lower) | 16 | Mississippian Chalcedonic Nodular | Story | SR-L2 | 243 | | O |
| Mississippian (Lower) | 16 | Mississippian Chalcedonic Nodular | Story | SR-L2+ | 243 | + | O |
| Mississippian (Lower) | 16 | Mississippian Chalcedonic Nodular | Story | SR-L3 | 244 | | |
| Mississippian (Lower) | 16 | Mississippian Chalcedonic Nodular | Story | SR-L3+ | 244 | + | |
| Mississippian (Lower) | 16 | Burlington | Story | SR-N1 | 246 | | Q |
| Mississippian (Lower) | 16 | Burlington | Story | SR-N1+ | 246 | + | Q |
| Mississippian (Lower) | 16 | Burlington | Story | SR-N2 | 246 | | |
| Mississippian (Lower) | 16 | Burlington | Story | SR-N2+ | 246 | + | |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Butler | BT-A1 | 85 | | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Butler | BT-A1+ | 85 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Fossiliferous | Butler | BT-A2+ | 130 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Franklin | FN-A+ | 131 | + | Q |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Franklin | FN-B | 116 | | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Franklin | FN-B+ | 116 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Grundy | GN-A | 2 | | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Grundy | GN-A+ | 2 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Gray | Grundy | GN-B | 86 | | O |
| Mississippian (Lower) | 16 | Maynes Creek Gray | Grundy | GN-B+ | 86 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Cream | Grundy | GN-C+ | 121 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Fossiliferous | Grundy | GN-D | 1 | | O |
| Mississippian (Lower) | 16 | Maynes Creek Fossiliferous | Grundy | GN-D+ | 1 | + | O |
| Mississippian (Lower) | 16 | Maynes Creek Speckled | Grundy | GN-E1+ | 136 | + | Q |
| Mississippian (Lower) | 16 | Maynes Creek Speckled | Grundy | GN-E2+ | 137 | + | Q |
| Mississippian (Lower) | 16 | Maynes Creek Speckled | Hardin | HA-A1 | 3 | | |
| Mississippian (Lower) | 17 | Maynes Creek Speckled | Hardin | HA-A1+ | 3 | + | |
| Mississippian (Lower) | 17 | Maynes Creek Green | Hardin | HA-A2+ | 135 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Hardin | HA-A3+ | 134 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Hardin | HA-B2+ | 132 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Speckled | Hardin | HA-B3 | 133 | | O |
| Mississippian (Lower) | 17 | Maynes Creek Speckled | Hardin | HA-B3+ | 133 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Henry | HN-I2 | 309 | | T |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Henry | HN-I2+ | 309 | + | T |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Henry | HN-I3 | 311 | | T |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Henry | HN-I3+ | 311 | + | T |
| Mississippian (Lower) | 17 | Maynes Creek Green | Marshall | MR-A | 129 | | S |
| Mississippian (Lower) | 17 | Maynes Creek Green | Marshall | MR-A+ | 129 | + | S |
| Mississippian (Lower) | 17 | Maynes Creek Fossiliferous | Marshall | MR-B1 | 82 | | O |
| Mississippian (Lower) | 17 | Maynes Creek Fossiliferous | Marshall | MR-B1+ | 82 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Gray | Marshall | MR-B2 | 139 | | O |
| Mississippian (Lower) | 17 | Maynes Creek Gray | Marshall | MR-B2+ | 139 | + | O |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Marshall | MR-C | 279 | | |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Marshall | MR-C+ | 279 | + | |
| Mississippian (Lower) | 17 | Maynes Creek Gray | Tama | TM-A1+ | 122 | + | Q |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Tama | TM-A2 | 140 | | Q |
| Mississippian (Lower) | 17 | Maynes Creek Cream | Tama | TM-A2+ | 140 | + | Q |
| Mississippian (Lower) | 17 | Maynes Creek Gray | Tama | TM-B1 | 83 | | Q |
| Mississippian (Lower) | 17 | Maynes Creek Gray | Tama | TM-B1+ | 83 | + | Q |
| Mississippian (Lower) | 17 | Maynes Creek Fossiliferous | Tama | TM-B2+ | 138 | + | Q |
| Mississippian (Lower) | 18 | Maynes Creek Cream | Tama | TM-C1 | 84 | | Q |
| Mississippian (Lower) | 18 | Maynes Creek Cream | Tama | TM-C1+ | 84 | + | Q |
| Mississippian (Lower) | 18 | Maynes Creek Cream | Tama | TM-C2+ | 141 | + | |
| Mississippian (Lower) | 18 | Maynes Creek Cream | Tama | TM-C3+ | 142 | + | |
| Devonian (Middle) | 18 | Rapid | Benton | BE-B | 481 | | |
| Devonian (Middle) | 18 | Rapid | Benton | BE-B+ | 481 | + | |
| Devonian (Middle) | 18 | Rapid | Buchanan | BC-A | 361 | | |
| Devonian (Middle) | 18 | Rapid | Buchanan | BC-A+ | 361 | + | |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-A | 8 | | C |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-A+ | 8 | + | C |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-B | 213 | | O |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-B+ | 213 | + | O |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-C | 214 | | O |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-C+ | 214 | + | O |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-F | 503 | | |
| Devonian (Middle) | 18 | Rapid | Johnson | JH-F+ | 503 | + | |
| Devonian (Middle) | 18 | Rapid | Linn | LN-I | 497 | | |
| Devonian (Middle) | 18 | Rapid | Linn | LN-I+ | 497 | + | |
| Devonian (Middle) | 18 | Wapsipinicon | Delaware | DW-D | 448 | | |
| Devonian (Middle) | 18 | Wapsipinicon | Delaware | DW-D+ | 448 | + | |
| Devonian (Middle) | 18 | Wapsipinicon | Jones | JN-E1 | 449 | | |
| Devonian (Middle) | 18 | Wapsipinicon | Jones | JN-E1+ | 449 | + | |
| Devonian (Middle) | 18 | Wapsipinicon | Jones | JN-E2 | 453 | | |
| Devonian (Middle) | 18 | Wapsipinicon | Jones | JN-E2+ | 453 | + | |