Taxonomy clear
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Cruciplacolithus latiponsYpresian - Danian
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Cruciplacolithus subrotundusSelandian - Danian
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Chiasmolithus oamaruensisRupelian - Bartonian
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Chiasmolithus edentulusDanian
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Derivanturportantes sigmoidesDanian
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Derivanturportantes krimmenostavroThanetian - Danian
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Chiasmolithus bidensYpresian - Selandian
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Sullivania gigasLutetian
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Sullivania californicaYpresian - Selandian
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Helicosphaera dyoporousRecent - Serravalian
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Helicosphaera kilidaChibanian
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Helicosphaera pterigaChibanian
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Pontosphaera alabamaensisDanian
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Umbellosphaera tenuisRecent - Zanclean
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Catinaster magnificusTortonian
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Assipetra youngiiLate Campanian - Early Barremian
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Campylosphaera eodelaYpresian - Thanetian
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Clausicoccus subdistichusBurdigalian - Thanetian
