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2. Shorter contributions to paleontology and stratigraphy
3. Shorter contributions to paleontology and stratigraphy
4. Some Middle Ordovician brachiopods and trilobites from the basin ranges, Western United States
5. Some silicified Strophomenacean brachiopods from the Ordovician of Kentucky, with comments on the genus Pionomena
6. Stratigraphic and facies relationships of the Carys Mills Formation of Ordovician and Silurian age, northeast Maine : a discussion of temporal and lateral equivalence of Ordovician and Silurian sedimentary rocks in northeast Maine
7. Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia
8. Stratigraphic framework of Cambrian and Ordovician rocks in the Appalachian Basin from Sequatchie County, Tennessee, through eastern Kentucky, to Mingo County, West Virginia
9. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Fayette County, Ohio to Botetourt County, Virginia
10. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Lake County, Ohio, to Juniata County, Pennsylvania
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