Bellerophon combsi Walcott, 1884 † (original description)
Bellerophon perplexa Walcott, 1884 † (original description)
Loxonema bella Walcott, 1884 † accepted as Bellazona bella (Walcott, 1884) † (original description)
Modiomorpha altiforme Walcott, 1884 † (original description)
Modiomorpha oblonga Walcott, 1884 † (original description)
Modiomorpha obtusa Walcott, 1884 † (original description)
Platyschisma mccoyi Walcott, 1884 † accepted as Orecopia mccoyi (Walcott, 1884) † (original description)
Scenella conula Walcott, 1884 † accepted as Protoconchoides conula (Walcott, 1884) † (original description)
Schizodus curtiformis Walcott, 1884 † (original description)
Schizodus deparcus Walcott, 1884 † (original description)
Schizodus pintoensis Walcott, 1884 † (original description)

Nevada for Modiomorpha altiforme Walcott, 1884 † 
Nevada for Modiomorpha oblonga Walcott, 1884 † 
Nevada for Modiomorpha obtusa Walcott, 1884 † 
Nevada for Platyschisma mccoyi Walcott, 1884 †