Kauffman, A. E.; Roth, R. I. (1966). Upper Pennsylvanian and Lower Permian fusulinids from north central Texas. Cushman Foundation for Foraminiferal Research, special publication. 8: 1-49.
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Kauffman, A. E.; Roth, R. I.
1966
Upper Pennsylvanian and Lower Permian fusulinids from north central Texas
Cushman Foundation for Foraminiferal Research, special publication