Permian fusulinids from northwestern Nevada - 1966
New Lower Permian fusulinids from Culberson County, Texas - 1971
Revision of Permian Ecca Series cephalopods, Natal, South Africa - 1974
Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain - 1986
More soft-bodied animals and algae from the Middle Cambrian of Utah and British Columbia - 1988