- GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
This study represents a survey of United States literature pertaining to ostracods from the Mississippian, Pennsylvanian, and Permian periods. The text consists of a check list of genera and species, recording their occurrences within series. The figures consist of 11 maps of outcrops by series, with locations of areas treated in faunal papers, and 1 range chart of valid genera, on which the number of species within each genus is indicated.