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| Group | Order | Common | count |
|---|---|---|---|
| Caenogastropoda | Caenogastropoda |
1 | |
| Eogastropoda | Euomphalina |
1 | |
Bellerophontida |
2 | ||
Murchisoniina |
2 | ||
zNone |
3 |
>Order: Bellerophontida
Formation: Bromide
zOK (Carter) County | OK1-608
Formation: Finnis Shale
Jack County | J1-522
>Order: Caenogastropoda
Formation: Keechi Creek Shale
Palo Pinto County | MW-437
>Order: Euomphalina
Formation: Finnis Shale
Jack County | J1-519
>Order: Murchisoniina
Formation: Finnis Shale
Jack County | J1-613
Formation: Finnis Shale
Jack County | J1-518
>Order: zNone
Formation: Bromide
zOK (Carter) County | OK1-637
Formation: Bromide
zOK (Carter) County | OK1-638
Formation: Bromide
zOK (Carter) County | OK1-659
| Period | Formation | count |
|---|---|---|
| Ordivician | Bromide | 4 |
| Pennsylvanian | Finnis Shale | 4 |
| Pennsylvanian | Keechi Creek Shale | 1 |