Acritosia Cooper & Grant, 1969 † (basis of record)
Acritosia magna Cooper & Grant, 1969 † (additional source)
Acritosia magnifica Cooper & Grant, 1975 † (original description)
Acritosia peculiaris Cooper & Grant, 1975 † (original description)
Acritosia silicica Cooper & Grant, 1975 † (original description)
Acritosia solida Cooper & Grant, 1975 † (original description)
Acritosia vestibula Cooper & Grant, 1975 † (original description)
Atelestegastus Cooper & Grant, 1975 † (original description)
Atelestegastus marginatus Cooper & Grant, 1975 † (original description)
Cooperina Termier, Termier & Pajaud, 1966 † (additional source)
Cooperina inexpectata Termier, Termier & Pajaud, 1966 † (additional source)
Cooperina parva Cooper & Grant, 1975 † (original description)
Cooperina subcuneata Cooper & Grant, 1975 † (original description)
Cooperina triangulata Cooper & Grant, 1975 † accepted as Cooperinoides triangulata (Cooper & Grant, 1975) † (original description)
Ctenalosia Cooper & Stehli, 1955 † (basis of record)
Ctenalosia fixata Cooper & Stehli, 1955 † (additional source)
Ctenalosia primitiva Cooper & Grant, 1975 † (original description)
Ctenalosia rotunda Cooper & Grant, 1975 † (original description)
Ctenalosia transversa Cooper & Grant, 1975 † (original description)
Cyclacanthariidae Cooper & Grant, 1975 † accepted as Cyclacanthariinae Cooper & Grant, 1975 † (original description)
Cyclacanthariinae Cooper & Grant, 1975 † (original description)
Dasysaria undulata Cooper & Grant, 1969 † (additional source)
Echinosteginae Muir-Wood & Cooper, 1960 † (additional source)
Grandaurispina belliformis Cooper & Grant, 1975 † (original description)
Grandaurispina elongata Cooper & Grant, 1975 † (original description)
Grandaurispina gibbosa Cooper & Grant, 1975 † (original description)
Grandaurispina rudis Cooper & Grant, 1975 † (original description)
Grandaurispina undulata Cooper & Grant, 1975 † (original description)
Hercosiidae Cooper & Grant, 1975 † (original description)
Heteralosia magnispina Cooper & Grant, 1975 † (original description)
Heteralosia paucispinosa Cooper & Grant, 1975 † (original description)
Heteralosia tenuispina Cooper & Grant, 1975 † (original description)
Heteralosia vidriensis Cooper & Grant, 1975 † (original description)
Limbella Stehli, 1954 † (basis of record)
Liraria Cooper & Grant, 1975 † (original description)
Nudauris convexa Cooper & Grant, 1975 † (original description)
Nudauris diabloensis Stehli, 1954 † (additional source)
Nudauris enigmatica Cooper & Grant, 1975 † (original description)
Nudauris presplendens Cooper & Grant, 1975 † (original description)
Nudauris reticulata Cooper & Grant, 1975 † (original description)
Nudauris splendens Cooper & Grant, 1975 † (original description)
Nudauris transversa Cooper & Grant, 1975 † (original description)
Nudauris tribulosa Cooper & Grant, 1975 † (original description)
Nudauris whitei Cooper & Grant, 1975 † (original description)
Scacchinella americana Stehli, 1954 † (additional source)
Scacchinella exasperata Cooper & Grant, 1975 † (original description)
Scacchinella primitiva Cooper & Grant, 1975 † (original description)
Scacchinella triangulata Cooper & Grant, 1975 † (original description)
Scapharininae Cooper & Grant, 1975 † (original description)
Spinarella Cooper & Grant, 1975 † (original description)
Spinarella costellata Cooper & Grant, 1975 † (original description)
Spinarella lobata Cooper & Grant, 1975 † (original description)
Spinarella paulula Cooper & Grant, 1975 † (original description)
Spinarella perfecta Cooper & Grant, 1975 † (original description)
Teguliferina Schuchert & Le Vene, 1929 † (basis of record)
Teguliferina boesei King, 1931 † (additional source)
Teguliferina compacta Cooper & Grant, 1975 † (original description)
Teguliferina parva Cooper & Grant, 1975 † (original description)
Teguliferina solidispinosa Cooper & Grant, 1975 † (original description)
Teguliferinidae Muir-Wood & Cooper, 1960 † (basis of record)
Undellaria Cooper & Grant, 1975 † (original description)
Xestosia Cooper & Grant, 1975 † (original description)
Xestosia obsolescens Cooper & Grant, 1975 † (original description)