Amphimelania lucida Cossmann, 1886 † accepted as Stenothyrella lucida (Cossmann, 1886) † (original description)
Columbella biarata Cossmann, 1886 † accepted as Mitrella biarata (Cossmann, 1886) † (original description)
Helix chevallieri Cossmann, 1886 † accepted as Sagdellina chevallieri (Cossmann, 1886) † (original description)
Limnaea herouvalensis Cossmann, 1886 † accepted as Bulimeulima herouvalensis (Cossmann, 1886) † (original description)
Littorina bezanconi Cossmann, 1886 † accepted as Cavilabium bezanconi (Cossmann, 1886) † (original description)
Nassaria calvimontensis Cossmann, 1886 † accepted as Pseudoneptunea calvimontensis (Cossmann, 1886) † (original description)
Neritopsis acutispira Cossmann, 1886 † (original description)
Ovula delphinoides Cossmann, 1886 † accepted as Oxycypraea delphinoides (Cossmann, 1886) † (original description)

France for Amphimelania lucida Cossmann, 1886 † 
France for Columbella biarata Cossmann, 1886 † 
France for Helix chevallieri Cossmann, 1886 † 
France for Limnaea herouvalensis Cossmann, 1886 † 
France for Littorina bezanconi Cossmann, 1886 † 
France for Nassaria calvimontensis Cossmann, 1886 † 
France for Neritopsis acutispira Cossmann, 1886 † 

 Type locality

 for Amphimelania lucida Cossmann, 1886 †

Houdan, Yvelines, France; Lutetian, middle Eocene [details]

 Type locality

 for Helix chevallieri Cossmann, 1886 †

Le Fayel, Oise, France; early Bartonian, late Eocene [details]