Aulocytheridea faboides faboides (Bosquet, 1852) Keij, 1957 † (original description)
Bairdia arcuata (Muenster, 1830) Bosquet, 1852 accepted as accepted as  (new combination reference)
Bairdia curvata Bosquet, 1852 † accepted as  † (original description)
Bairdia foveolata Bosquet, 1852 † accepted as  † (original description)
Bairdia hebertiana Bosquet, 1852 † (original description)
Bairdia lithodomoides Bosquet, 1852 † accepted as Cushmanidea lithodomoides (Terquem, 1878) Wouters, 1974 (original description)
Bairdia margikata Bosquet, 1852 † (original description)
Bairdia punctatella Bosquet, 1852 † accepted as Haplocytheridea punctatella (Bosquet, 1852) Keij, 1957 † (original description)
Bairdia strigulosa (Reuss, 1850) Bosquet, 1852 † accepted as Cyamocytheridea strigulosa (Reuss, 1850) Apostolescu, Deroo & Grekoff, 1958 † (new combination reference)
Bairdia subdeltoidea (Muenster, 1830) accepted as Bairdoppilata subdeltoidea (Muenster, 1830) † (new combination reference)
Bairdia subdeltoidea subdeltoidea (Muenster, 1830) accepted as Bairdoppilata subdeltoidea subdeltoidea (Muenster, 1830) (new combination reference)
Bairdia subglobosa Bosquet, 1852 † accepted as  † (original description)
Brachycythere ventricosa (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Bradleya cornueliana (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Cuneocythere (Cuneocythere) marginata (Bosquet, 1852) Keij, 1957 † (original description)
Cuneocythere (Cuneocythere) marginata marginata (Bosquet, 1852) Keij, 1957 † (original description)
Cuneocythere (Monsmirabilia) foveolata (Bosquet, 1852) Keij, 1957 † represented as  † (original description)
Cuneocythere marginata (Bosquet, 1852) Keij, 1957 † (original description)
Cuneocythere marginata marginata (Bosquet, 1852) Keij, 1957 † (original description)
Cyamocytheridea hebertiana (Bosquet, 1852) † accepted as  † (original description)
Cyamocytheridea punctatella punctatella (Bosquet, 1852) † accepted as Haplocytheridea punctatella punctatella (Bosquet, 1852) Keij, 1957 † (original description)
Cyprella edwardsiana Bosquet, 1852 † accepted as  † (original description)
Cypridea Bosquet, 1852 † (original description)
Cyprideis (Goerlichia) wiIliamsom Bosquet, 1852 † (original description)
Cythere (Cytheridea) Bosquet, 1852 accepted as Cytheridea Bosquet, 1852 (original description)
Cythere aculeata Bosquet, 1852 † accepted as  † (original description)
Cythere approximata Bosquet, 1852 † accepted as Bradleya approximata (Bosquet, 1852) † (original description)
Cythere approximata approximata Bosquet, 1852 † accepted as Bradleya approximata approximata (Bosquet, 1852) † (original description)
Cythere arachnoidea Bosquet, 1852 † accepted as Trachyleberis arachnoidea (Bosquet, 1852) Keij, 1957 † (original description)
Cythere bidentata Bosquet, 1852 † accepted as  † (original description)
Cythere calcarata Bosquet, 1852 † accepted as  † (original description)
Cythere ceratoptera Bosquet, 1852 † accepted as Pterygocythereis ceratoptera (Bosquet, 1852) † (original description)
Cythere cornueliana Bosquet, 1852 † accepted as  † (original description)
Cythere deformis (Reuss, 1850) Bosquet, 1852 † accepted as Pokornyella deformis (Reuss, 1850) Gramann, 1969 † (new combination reference)
Cythere deformis deformis (Reuss, 1850) Bosquet, 1852 † accepted as Pokornyella deformis deformis (Reuss, 1850) Ruggieri, 1976 † (new combination reference)
Cythere deshayesiana Bosquet, 1852 † accepted as  † (original description)
Cythere dumontiana Bosquet, 1852 † (original description)
Cythere edwardsii (Roemer, 1838) † accepted as Costa edwardsii (Roemer, 1838) † (new combination reference)
Cythere edwardsii edwardsii (Roemer, 1838) † accepted as Costa edwardsii edwardsii (Roemer, 1838) † (new combination reference)
Cythere faboides Bosquet, 1852 † accepted as Aulocytheridea faboides (Bosquet, 1852) Keij, 1957 † (original description)
Cythere favosa (Roemer, 1838) † accepted as Hemicythere (Urocythereis) favosa (Roemer, 1838) † accepted as Urocythereis favosa (Roemer, 1838) † (new combination reference)
Cythere fenestrata Bosquet, 1852 † accepted as  † (original description)
Cythere forbesiana Bosquet, 1852 † accepted as Kingmaina forbesiana (Bosquet, 1852) † (original description)
Cythere formosa Bosquet, 1852 † accepted as Trachyleberis formosa (Bosquet, 1852) Apostolescu, 1955 † (original description)
Cythere galeata (Reuss, 1850) Bosquet, 1852 † accepted as Senesia galeata (Reuss, 1850) † (new combination reference)
Cythere gradata Bosquet, 1852 † accepted as  † (original description)
Cythere grateloupiana Bosquet, 1852 † accepted as  † (original description)
Cythere haidingeri (Reuss, 1850) Bosquet, 1852 † accepted as Grinioneis haidingeri (Reuss, 1850) Malz & Jellinek, 1984 † (new combination reference)
Cythere haimeana Bosquet, 1852 † accepted as  † (original description)
Cythere hebertiana Bosquet, 1852 † accepted as  † (original description)
Cythere horrescens Bosquet, 1852 † accepted as  † (original description)
Cythere jonesiana Bosquet, 1852 † (original description)
Cythere lamarckiana Bosquet, 1852 † accepted as  † (original description)
Cythere lichenophora Bosquet, 1852 † accepted as Horrificiella lichenophora (Bosquet, 1852) † (original description)
Cythere limbata Bosquet, 1852 † accepted as Urocythere (Pokornyella) limbata (Bosquet, 1852) † (original description)
Cythere lyelliana Bosquet, 1852 † accepted as  † (original description)
Cythere macropora Bosquet, 1852 † accepted as  † (original description)
Cythere micheliniana Bosquet, 1852 † accepted as Ruggieria micheliniana (Bosquet, 1852) Keij, 1957 † (original description)
Cythere monilifera Bosquet, 1852 † (original description)
Cythere multicostata Bosquet, 1852 † accepted as  † (original description)
Cythere nebulosa Bosquet, 1852 † (original description)
Cythere nystiana Bosquet, 1852 † accepted as Loxoconcha nystiana (Bosquet, 1852) Keij, 1957 † (original description)
Cythere orbignyana Bosquet, 1852 † accepted as Quadracythere orbignyana (Bosquet, 1852) † (original description)
Cythere pectinata Bosquet, 1852 † accepted as Bosquetina pectinata (Bosquet, 1852) Keij, 1957 † (original description)
Cythere plicatula (Reuss, 1850) Bosquet, 1852 † (new combination reference)
Cythere plicatula plicatula (Reuss, 1850) Bosquet, 1852 † (new combination reference)
Cythere punctatella (Reuss, 1850) Bosquet, 1852 † accepted as Loxoconcha punctatella (Reuss, 1850) † (new combination reference)
Cythere pygmaea (Reuss, 1850) Bosquet, 1852 † accepted as Eucytherura pygmaea (Reuss, 1850) Sissingh, 1972 † (new combination reference)
Cythere reussiana Bosquet, 1852 † accepted as  † (original description)
Cythere sagittula (Reuss, 1850) Bosquet, 1852 † accepted as Loxoconcha sagittula (Reuss, 1850) Ruggieri, 1959 † (new combination reference)
Cythere tessellata Bosquet, 1852 † accepted as  † (original description)
Cythere thierensiana Bosquet, 1852 † accepted as Bradleya thierensiana (Bosquet, 1852) † (original description)
Cythere truncata (Reuss, 1850) Bosquet, 1852 † accepted as Cnestocythere truncata (Reuss, 1850) Triebel, 1950 † (new combination reference)
Cythere ventricosa Bosquet, 1852 † accepted as  † (original description)
Cythere vermiculata Bosquet, 1852 † accepted as  † (original description)
Cytherella Jones, 1849 (new combination reference)
Cytherella (Cytherella) Jones, 1849 (new combination reference)
Cytherella compressa (Muenster, 1830) (new combination reference)
Cytherella hieroglyphica Bosquet, 1852 † accepted as  † (original description)
Cytherella jonesiana Bosquet, 1852 † (original description)
Cytherelloidea jonesiana jonesiana (Bosquet, 1852) † (original description)
Cytheridea Bosquet, 1852 (original description)
Cytheridea (Cytheridea) Bosquet, 1852 (original description)
Cytheridea acuminata (Bosquet, 1852) Goerlich, 1953 † (original description)
Cytheridea incrassata Bosquet, 1852 † (original description)
Cytheridea jonesiana Bosquet, 1852 † (original description)
Cytheridea papillosa Bosquet, 1852 † accepted as Eucytheridea papillosa (Bosquet, 1852) Hulings, 1967 (original description)
Cytheridea williamsoniana Bosquet, 1852 † accepted as  † (original description)
Cytheropteron gradatum (Bosquet, 1852) Brady, 1878 † accepted as  † (original description)
Eucytheridea papillosa papillosa (Bosquet, 1852) Hulings, 1967 (original description)
Haplocytheridea hebertiana (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Haplocytheridea punctatella punctatella (Bosquet, 1852) Keij, 1957 † (original description)
Hermanites hebertiana (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Hermanites hebertianus (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Hirsutocythere horrescens (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)
Krithe papillosa (Bosquet, 1852) Apostolescu, 1955 † (original description)
Monsmirabilia foveolata (Bosquet, 1852) Apostolescu, 1955 † accepted as  † (original description)
Pontocythere lithodomoides (Bosquet, 1852) † accepted as Cushmanidea lithodomoides (Terquem, 1878) Wouters, 1974 (original description)
Pterygocythereis ceratoptera ceratoptera (Bosquet, 1852) † (original description)
Quadracythere lamarckiana (Bosquet, 1852) Keij, 1957 † accepted as  † (original description)

France for Bradleya approximata (Bosquet, 1852) † 
France for Bradleya approximata approximata (Bosquet, 1852) † 

 Description

 for Bradleya approximata (Bosquet, 1852) †

This species has oblong-subtetragonal valves, rounded at the front and bordered by a fairly wide, smooth, ... [details]

 Description

 for Bradleya approximata approximata (Bosquet, 1852) †

"This species has oblong-subtetragonal valves, rounded at the front and bordered by a fairly wide, smooth, ... [details]

 Diagnosis

 for Bradleya approximata (Bosquet, 1852) †

This species, although very close to my Cythere (Cypridina) Koninckiana from the Maastricht chalk, is easily ... [details]

 Diagnosis

 for Bradleya approximata approximata (Bosquet, 1852) †

"This species, although very close to my Cythere (Cypridina) Koninckiana from the Maastricht chalk, is easily ... [details]