Cassidaria mutica Michelotti, 1861 † accepted as Eudolium muticum (Michelotti, 1861) † (original description)
Cassis beyrichi Michelotti, 1861 † accepted as Sconsia beyrichi (Michelotti, 1861) † (original description)
Cassis retusa Michelotti, 1861 † (original description)
Cerithium delbosi Michelotti, 1861 † accepted as Cerithium romeo Bayan, 1870 † accepted as Gourmya romeo (Bayan, 1870) † (original description)
Cerithium meneghinii Michelotti, 1861 † accepted as Globulocerithium meneghinii (Michelotti, 1861) † (original description)
Conus ineditus Michelotti, 1861 † accepted as Eoconus diversiformis (Deshayes, 1835) † (original description)
Janira deperdita Michelotti, 1861 † accepted as Gigantopecten arcuatus (Brocchi, 1814) † (original description)
Janira fallax Michelotti, 1861 † accepted as Gigantopecten arcuatus (Brocchi, 1814) † (original description)
Mactra cyrenoides Michelotti, 1861 † accepted as Polymesoda convexa (Brongniart, 1822) † (original description)
Natica elongata Michelotti, 1861 † accepted as Euspirocrommium elongatum (Michelotti, 1861) † (original description)
Pecten deletus Michelotti, 1861 † accepted as Costellamussiopecten deletus (Michelotti, 1861) † (original description)
Pecten miocenicus Michelotti, 1861 † accepted as Aequipecten miocenicus (Michelotti, 1861) † (original description)
Pecten spinulosus Münster, 1833 sensu Michelotti, 1861 † accepted as Aequipecten biaritzensis (d'Archiac, 1846) † (basis of record)
Planorbis lignitarum Michelotti, 1861 † (original description)
Strombus problematicus Michelotti, 1861 † accepted as Oostrombus problematicus (Michelotti, 1861) † (original description)
Turbinella duchassaingi Michelotti, 1861 † accepted as Vasum cancellatum (Grateloup, 1845) † accepted as Globivasum cancellatum (Grateloup, 1845) † (original description)
Turbo neglectus Michelotti, 1861 † accepted as Gibbula neglecta (Michelotti, 1861) † (original description)
Turritella nodosa Michelotti, 1840 † accepted as Turritella desmarestina Basterot, 1825 † accepted as Peyrotia desmarestina (Basterot, 1825) † (source of synonymy)
Voluta crenata Michelotti, 1861 † accepted as Vasum cancellatum (Grateloup, 1845) † accepted as Globivasum cancellatum (Grateloup, 1845) † (original description)
Voluta neglecta Michelotti, 1861 † accepted as Morum neglectum (Michelotti, 1861) † (original description)

France for Sconsia beyrichi (Michelotti, 1861) † 
Italy for Cassis beyrichi Michelotti, 1861 † 
Italy for Cassis retusa Michelotti, 1861 † 
Italy for Cerithium delbosi Michelotti, 1861 † 
Italy for Cerithium meneghinii Michelotti, 1861 † 
Italy for Janira deperdita Michelotti, 1861 † 
Italy for Janira fallax Michelotti, 1861 † 
Italy for Mactra cyrenoides Michelotti, 1861 † 
Italy for Pecten deletus Michelotti, 1861 † 
Italy for Pecten miocenicus Michelotti, 1861 † 
Italy for Planorbis lignitarum Michelotti, 1861 † 
Italy for Planorbis lignitarum Michelotti, 1861 † 
Italy for Turbinella duchassaingi Michelotti, 1861 † 
Italy for Voluta crenata Michelotti, 1861 † 
Italy for Voluta neglecta Michelotti, 1861 † 

 Type locality

 for Mactra cyrenoides Michelotti, 1861 †

"Cosseria, Dego" (Ligura, Italy) [details]

 Type locality

 for Planorbis lignitarum Michelotti, 1861 †

Bagnasco, Cuneo, and Cadibona, Savona, Italy; Chattian, late Oligocene [details]