Skipp, B.A.L., Halcomb, L.D., and Gutschick, R.C., 1966, Tournayellinae, calcareous foraminifera, in Mississippian rocks of North America; with translations from the original Russian of descriptions of several key genera and species by Ivan Mittin and Betty Skipp: Cushman Foundation for Foraminiferal Research, Special Publication 9, 38 p.
