Cassidaria washingtoniana C. E. Weaver, 1912 † accepted as Olequahia washingtoniana (C. E. Weaver, 1912) † (original description)
Corbicula cowlitzensis C. E. Weaver, 1912 † (original description)
Corbicula eufaulaensis C. E. Weaver, 1912 † accepted as Corbicula cowlitzensis C. E. Weaver, 1912 † (original description)
Crassatellites cowlitzensis Weaver, 1912 † (original description)
Cryptomya washingtoniana C. E. Weaver, 1912 accepted as Cryptomya californica (Conrad, 1837) (original description)
Fasciolaria washingtoniana C. E. Weaver, 1912 † accepted as Nekewis washingtoniana (C. E. Weaver, 1912) † (original description)
Fusus dickersoni C. E. Weaver, 1912 † accepted as Exilia dickersoni (C. E. Weaver, 1912) † (original description)
Fusus washingtonianus C. E. Weaver, 1912 † accepted as Fulgurofusus washingtonianus (C. E. Weaver, 1912) † (original description)
Hemifusus washingtonianus C. E. Weaver, 1912 † accepted as Whitneyella washingtoniana (C. E. Weaver, 1912) † (original description)
Meretrix olequahensis C. E. Weaver, 1912 † accepted as Corbicula olequahensis (C. E. Weaver, 1912) † (original description)
Mitra washingtoniana C. E. Weaver, 1912 † accepted as Conomitra washingtoniana (C. E. Weaver, 1912) † (original description)
Murex cowlitzensis Weaver, 1912 † accepted as Hexaplex cowlitzensis (Weaver, 1912) † (original description)
Murex sopenahensis Weaver, 1912 † accepted as Hexaplex sopenahensis (Weaver, 1912) † (original description)
Pecten alockamanensis C. E. Weaver, 1912 † accepted as Leptopecten alockamanensis (C. E. Weaver, 1912) † (original description)
Pecten cowlitzensis C. E. Weaver, 1912 † accepted as Chlamys cowlitzensis (C. E. Weaver, 1912) † (original description)
Pecten porterensis C. E. Weaver, 1912 † accepted as Vertipecten porterensis (C. E. Weaver, 1912) † (original description)
Potamides fettkei C. E. Weaver, 1912 † accepted as Melanoides fettkei (C. E. Weaver, 1912) † (original description)
Potamides lewisiana C. E. Weaver, 1912 † accepted as Elimia lewisiana (C. E. Weaver, 1912) † (original description)
Ranella washingtoniana C. E. Weaver, 1912 † (original description)
Turritella porterensis C. E. Weaver, 1912 † (original description)

Washington for Corbicula cowlitzensis C. E. Weaver, 1912 † 
Washington for Corbicula eufaulaensis C. E. Weaver, 1912 † 
Washington for Meretrix olequahensis C. E. Weaver, 1912 † 
Washington for Pecten alockamanensis C. E. Weaver, 1912 † 
Washington for Pecten cowlitzensis C. E. Weaver, 1912 † 
Washington for Pecten porterensis C. E. Weaver, 1912 † 
Washington for Potamides fettkei C. E. Weaver, 1912 † 
Washington for Potamides lewisiana C. E. Weaver, 1912 † 
Washington for Turritella porterensis C. E. Weaver, 1912 † 
Washington (State) for Mitra washingtoniana C. E. Weaver, 1912 † 
Washington (State) for Murex cowlitzensis Weaver, 1912 † 
Washington (State) for Murex sopenahensis Weaver, 1912 † 

 Type locality

 for Corbicula cowlitzensis C. E. Weaver, 1912 †

"Loc. No. 8 (University of Washington Palaeontological Collection) on Coal Creek one mile north of Inmann-Polson ... [details]

 Type locality

 for Corbicula eufaulaensis C. E. Weaver, 1912 †

"Loc. No. 8 (University of Washington Palaeontological Collection) on Coal Creek, one mile north of Inmann-Polson ... [details]

 Type locality

 for Meretrix olequahensis C. E. Weaver, 1912 †

"Loc. No. 2 (University of Washington Palaeontological Collection). On Olequah Creek, one mile above junction of ... [details]

 Type locality

 for Potamides fettkei C. E. Weaver, 1912 †

On Olequah Creek one mile above junction with Stillwater Creek, back of Cantwell place, Sec. 29, T. 11 N., R. 2 W., ... [details]

 Type locality

 for Potamides lewisiana C. E. Weaver, 1912 †

On Olequah Creek one mile above junction with Stillwater Creek, back of Cantwell place, Sec. 29, T. 11 N., R. 2 W., ... [details]