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Silurian System- Hunton Limestone Megagroup
- Tippecanoe Sequence
- Silurian System
- Cayugan Series
- Niagaran Series
- Moccasin Springs Formation
- Racine Formation
- St. Clair Limestone
- Sugar Run Formation
- Joliet Formation
- Marcus Formation
- Romeo Member
- Markgraf Member
- Brandon Bridge Member
- Alexandrian Series
- Kankakee Formation
- Sweeney Formation
- Sexton Creek Limestone
- Plaines Member
- Troutman Member
- Offerman Member
- Drummond Member
- Edgewood Formation
- Elwood Formation
- Blanding Formation
- Wilhelmi Formation
- Tete de Morts Formation
- Birds Member
- Schweizer Member
- Mosalem Formation
- Noix Oolite Member
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