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| Stratigraphic Age Codes |
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Stratigraphic Age Codes
Stratigraphic Age Codes: (Table e24.dbf) ERA PERIOD EPOCH CODE 1 Cenozoic 0 0 100
1 Quaternary 0 110
1 Recent 111
2 Pleistocene 112
9 Pliocene-Pleistocene 119
2 Tertiary 0 120
1 Pliocene 121
2 Miocene 122
3 Oligocene 123
4 Eocene 124
5 Paleocene 125
9 Cretaceous-Tertiary 129
3 Mesozoic-Cenozoic 199
2 Mesozoic 0 200
1 Cretaceous 0 210
1 Upper 211
4 Middle 214
7 Lower 217
9 Jurassic-Cretaceous 219
2 Jurassic 0 220
1 Upper 221
4 Middle 224
7 Lower 227
9 Triassic-Jurassic 229
3 Triassic 0 230
1 Upper 231
4 Middle 234
7 Lower 237
9 Permian-Triassic 239
Paleozoic-Mesozoic 299
3 Paleozoic 0 0 300
Upper Paleozoic 301
1 Permian 0 310
1 Upper 311
4 Middle 314
7 Lower 317
9 Pennsylvan.-Permian 319
2 Pennsylvanian 0 320
1 Upper 321
4 Middle 324
7 Lower 327
9 Carboniferous 329
3 Mississippian 0 330
1 Upper 331
4 Middle 334
7 Lower 337
9 Devonian-Mississipp. 339
4 Devonian 0 340
1 Upper 341
4 Middle 344
7 Lower 347
9 Silurian-Devonian 349
5 Silurian 0 350
1 Upper 351
4 Middle 354
7 Lower 357
9 Ordovician-Silurian 359
6 Ordovician 0 360
1 Upper 361
4 Middle 364
7 Lower 367
9 Cambrian-Ordovician 369
7 Cambrian 0 370
1 Upper 371
4 Middle 374
7 Lower 377
9 Proterozoic-Cambrian 379
Proterozoic-Paleoz. 399
4 Proterozoic 0 0 400
1 Upper 0 410
2 Hadrynian 0 420
4 Middle 0 440
5 Helikian 0 450
7 Lower 0 470
8 Aphebian 0 480
5 Archean 0 0 500
1 Upper 0 510
4 Middle 0 540
7 Lower 0 570
Unknown *** Total 80
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