This report is concerned principally with American Wolfcampian fusulinids. It includes notice of several fusulinid genera proposed in recent years, and changes in classification of the fusulinids. The first section of this report considers units known since 1948. The section on regional correlations and faunal summaries presents brief discussions of the stratigraphy and fusulinid faunal aspects of the Wolfcampian rocks of Kansas, north-central and western Texas, New Mexico, southern Arizona, several parts of Nevada, and the Wasatch Mountains of Utah. The fusulinid fauna described in the third section of this report includes a new species of Ozawainella, an unnamed form of Nankinella, a previously described species of Schubertella, a new species of Boultonia and one of Pseudofusulinella, three new and one previously described forms of Oketaella, six new and two previously described forms of Triticites, seven new and three previously described forms of Dunbarinella, 15 new and four previously described forms of Schwagerina, one previously described form of Paraschwagerina, four new forms of Pseudofusulina, and three new and two previously described forms of Pseudoschwagerina.