Briardia velaini Munier-Chalmas, 1884 † (additional source)
Costhyrella Pacaud, 1997 † (original description)
Costhyrella abnormis (Deshayes, 1862) † (basis of record)
Costhyrella convergens Pacaud, 1997 † (original description)
Costhyrella marginata Pacaud, 1997 † (original description)
Costhyrella microscopica (Cossmann, 1883) † (basis of record)
Goniatogyra parisiensis Pacaud, 1997 † (original description)
Goniatogyra tenuis (Briart & Cornet, 1887) † (basis of record)
Hydrobia cylindracea (Deshayes, 1862) † (basis of record)
Lapparentia Berthelin, 1885 † (additional source)
Lapparentia elatior (Cossmann, 1907) † (additional source)
Lapparentia gougeroti Pacaud, 1997 † (original description)
Lapparentia lagynophorae (Stache, 1889) † (basis of record)
Lapparentia rhodanica (Roman, 1912) † (basis of record)
Lapparentia stenochora (Cossmann, 1888) † (basis of record)
Lapparentia veslensis (Cossmann, 1907) † (basis of record)
Prososthenia laevigata Volkova, 1953 † (basis of record)
Stenothyra bonneti Cossmann, 1907 † accepted as Costhyrella microscopica (Cossmann, 1883) † (source of synonymy)

France for Costhyrella convergens Pacaud, 1997 † 
France for Costhyrella marginata Pacaud, 1997 † 
France for Goniatogyra parisiensis Pacaud, 1997 † 
France for Lapparentia gougeroti Pacaud, 1997 † 

 Type locality

 for Costhyrella convergens Pacaud, 1997 †

Prouilly, Marne, France; Sables de Bracheux, late Thanetian, late Paleocene [details]

 Type locality

 for Costhyrella marginata Pacaud, 1997 †

Jonchery-sur-Vesles, Marne, France; Sables de Bracheux, late Thanetian, late Paleocene [details]

 Type locality

 for Goniatogyra parisiensis Pacaud, 1997 †

Prouilly, Marne, France; Sables de Bracheux, late Thanetian, late Paleocene [details]

 Type locality

 for Lapparentia gougeroti Pacaud, 1997 †

Jonchery-sur-Vesles, Marne, France; Sables de Bracheux, late Thanetian, late Paleocene [details]