1. Nonmarine ostracodes in the Lakota Formation (Lower Cretaceous) from South Dakota and Wyoming Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1979 Format: Book Access & Availability: Loading
2. Mississippian ostracoda of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1975 Format: Book Access & Availability: Loading
3. Late Paleozoic ostracode species from the conterminous United States Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1972 Format: Book Access & Availability: Loading
4. New Late Mississippian ostracode genera and species from northern Alaska Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1971 Format: Book Access & Availability: Loading
5. Pseudoleperditia Schneider, 1956 (Ostracoda, Crustacea), an early Mississippian genus from southwestern Nevada Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1969 Format: Book Access & Availability: Loading
6. Nonmarine ostracodes of Early Cretaceous age from Pine Valley quadrangle, Nevada Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1969 Format: Book Access & Availability: Loading
7. Aechminella, Amphissites, Kirkbyella, and related genera Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1961 Format: Book Access & Availability: Loading
8. Paleozoic species of Bairdia and related genera Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1960 Format: Book Access & Availability: Loading
9. Ostracoda from the Permian of the Glass Mountains, Texas Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1954 Format: Book Access & Availability: Loading
10. Growth series of ostracodes from the Permian of Texas Author/Creator: Sohn, I. G. 1911-2000, (Israel Gregory), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1950 Format: Book Access & Availability: Loading