Traits Taxon list
Calcidiscus bicircus Bown, 2005 †
Calcidiscus leptoporus (G.Murray & V.H.Blackman) Loeblich & Tappan, 1978 †
Calcidiscus leptoporus f. rigidus (K.R.Gaarder) A.Kleijne, 1991
Calcidiscus leptoporus subsp. quadriperforatus (Kamptner) Geisen et al. , 2002
Calcidiscus obscurus Deflandre & Fert, 1955 †
Calcidiscus parvicrucis Bown, 2005 †
Calcidiscus pataecus (S.Gartner) Kaenel & G.Villa, 1996 †
Calcidiscus premacintyrei S.Theodoridis, 1984 †
Calcidiscus tropicus (Kamptner) Kamptner, 1956 †
Calcidiscus uniforatus Kamptner, 1963 †
Conococcolithus minutus W.W.Hay & H.Mohler, 1967 †
Conococcolithus panis A.R.Edwards, 1973 † accepted as Biscutum harrisonii Varol, 1989 †
Cryptococcolithus medioperforatus (Varol) Kaenel & G.Villa, 1996 †
Cryptococcolithus takayamae S.Gartner †
Cyclococcolithus arabellus P.H.Roth, 1970 †
Cyclococcolithus ciperoensis P.H.Roth †
Cyclococcolithus cricotus S.Gartner, 1967 † (uncertain )
Cyclococcolithus decorus Kamptner, 1963 †
Cyclococcolithus dictyodus (Deflandre & Fert, 1954) Hay & Towe, 1962 †
Cyclococcolithus elatus Kamptner, 1955 †
Cyclococcolithus flexuosus Chongyou Wang, Yin Cao & Ketang Xi, 1987 †
Cyclococcolithus floridanus (Roth & Hay) Hay †
Cyclococcolithus floridanus (Roth & Hay) P.H.Roth †
Cyclococcolithus formosus Kamptner, 1963 †
Cyclococcolithus hemisphaericus Kamptner †
Cyclococcolithus humilis (Kamptner, 1955) Kamptner, 1963 †
Cyclococcolithus inversus (Deflandre) W.W.Hay, H.Mohler & M.E.Wade accepted as Markalius astroporus (Stradner) W.W.Hay & H.Mohler, 1967 †
Cyclococcolithus kingii P.H.Roth, 1970 † (uncertain )
Cyclococcolithus krejcigrafii Jafar, 1975 †
Cyclococcolithus luminis Sullivan, 1965 †
Cyclococcolithus lunulus P.H.Roth, 1970 †
Cyclococcolithus lusitanicus (Black) Ray, Mohler & Wade, 1964 †
Cyclococcolithus margaritae P.Roth & Hay, 1967 †
Cyclococcolithus minutus Kamptner, 1963 †
Cyclococcolithus moluccensis Kamptner, 1955
Cyclococcolithus multistriatus Kamptner, 1963 †
Cyclococcolithus orbis S.Gartner & L.A.Smith, 1967 † accepted as Coccolithus formosus (Kamptner) S.W.Wise †
Cyclococcolithus robustus (Bramlette & F.R.Sullivan) C.Müller, 1974 † accepted as Diadelithus robustus (Bramlette & F.R.Sullivan) M.P.Aubry, 2009 †
Cyclococcolithus rotula (Kamptner, 1948) Kamptner, 1956 †
Cyclococcolithus spatiosus Kamptner, 1963 †
Cyclococcolithus tanianus Kamptner, 1955 †
Cyclococcolithus turgens Kamptner, 1955
Cyclococcolithus wanneri Kamptner, 1955 †
Cyclococcolithus waxahachia Bukry, 1969 †
Cycloplacolithus amerensis Kamptner, 1963 †
Cycloplacolithus disciformis Kamptner, 1963 †
Cycloplacolithus laevigatus Kamptner, 1963 †
Cycloplacolithus planus Kamptner, 1963 †
Cycloplacolithus prominens Kamptner, 1963 †
Cycloplacolithus sejunctus Kamptner, 1963 †
Geminilithella lordii (Varol) Varol, 1989 †
Geminilithella petaliformis (Varol) Varol, 1989 †
Geminilithella subtilis (C.Müller) Varol, 1989 †
Hayaster perplexus (Bramlette & Riedel) Bukry, 1973 †
Hayella aperta S.Theodoridis, 1984 †
Hayella challengeri (C.Müller) S.Theodoridis, 1984 †
Hayella elegans P.H.Roth †
Hayella situliformis S.Gartner, 1969 †
Markalius astroporus (Stradner) W.W.Hay & H.Mohler, 1967 †
Markalius circumradiatus (Stover) Perch-Nielsen, 1968 †
Markalius inversus (Deflandre) Bramlette & E.Martini, 1967 †
Markalius reinhardtii Perch-Nielsen, 1968 † accepted as Cyclagelosphaera reinhardtii (K.Perch-Nielsen) P.H.Roth †
Markalius variabilis Perch-Nielsen, 1977 † accepted as Carlamuelleria bramlettei (Bukry & S.F.Percival) Varol, 2023 †
Mauriceblackia media (Bown) Varol, 2023 †
Oolithotus antillarum (Cohen) Cohen & P.Reinhardt, 1968 †
Oolithotus fragilis (Lohmann) Martini & C.Müller, 1972
Oolithotus fragilis subsp. cavum Okada & McIntyre, 1977
Tiarolithus diversistriatus Kamptner, 1963 †
Tiarolithus laxus Kamptner, 1963 †
Tiarolithus medusoides (Kamptner) Kamptner, 1963 †
Tiarolithus pacificus Kamptner, 1963 †
Tiarolithus rectilineatus Kamptner, 1963 †
Umbilicosphaera angustiforamen Okada & McIntyre, 1977
Umbilicosphaera anulata (P.Reinhardt) P.Reinhardt †
Umbilicosphaera anulus (J.Lecal) J.R.Young & Geisen, 2003
Umbilicosphaera calvata Steinmetz, 1991
Umbilicosphaera cretacea Arkhangelskij, 1912
Umbilicosphaera detecta (Kaenel & G.Villa) Jer.R.Young & Bown, 2014 †
Umbilicosphaera dilatata Kamptner †
Umbilicosphaera edgariae (Bown & Dunkley Jones) J.R.Young & Bown, 2014 †
Umbilicosphaera foliosa (Kamptner ex Kleijne) Geisen, 2003 †
Umbilicosphaera henrikseniae (Bown) J.R.Young & Bown, 2014 †
Umbilicosphaera hulburtiana Gaarder, 1970
Umbilicosphaera leptopora (Murray & Blackman) Cohen & P.Reinhardt †
Umbilicosphaera nitescens Kamptner, 1963 †
Umbilicosphaera patera Utsunomiya, Hagino & Y.Tanaka, 2021 †
Umbilicosphaera protoannula (S.Gartner) Jer.R.Young & Bown, 2014 †
Umbilicosphaera scituloma Steinmetz, 1991
Umbilicosphaera sibogae (Weber Bosse) Gaarder, 1970
Umbilicosphaera volgensis Arkhangelskij †