Category:Mason Group
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Click the column headers to sort the table, by default it is sorted by "Stratigraphic Code"
| Unit Name | Stratigraphic Code |
|---|---|
| Ashmore Tongue | 0 |
| Beverly Tongue | 0 |
| Mason Group | 0 |
| Peoria Silt | 100 |
| Equality Formation | 220 |
| Lake Michigan Member | 225 |
| Henry Formation | 230 |
| Morton Tongue | 560 |
| Robein Member | 600 |
| Peddicord Tongue | 610 |
| Roxana Silt | 630 |
Pages in category "Mason Group"
The following 22 pages are in this category, out of 22 total.