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2. Calloway Creek limestone and Ashlock and Drakes Formations (Upper Ordovician) in south-central Kentucky
3. Clays Ferry formation (Ordovician) -- a new map unit in south-central Kentucky
4. Calloway Creek limestone and Ashlock and Drakes formations (Upper Ordovician) in south-central Kentucky
5. The Chopawamsic Formation-- : a new stratigraphic unit in the Piedmont of northeastern Virginia
6. The Chopawamsic Formation-- : a new stratigraphic unit in the Piedmont of northeastern Virginia
7. Conodonts of the Trenton group (Ordovician) in New York, Southern Ontario, and Quebec
8. Calymenid and other Ordovician trilobites from Kentucky and Ohio
9. Composition, clay mineralogy, and diagenesis of the Simpson Group (Middle Ordovician), Grady County, Oklahoma
10. Composition, clay mineralogy, and diagenesis of the Simpson Group (Middle Ordovician), Grady County, Oklahoma
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