Taxonomy clear
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Crucibiscutum ryazanicumEarly Berriasian - Late Aptian
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Crucibiscutum salebrosum
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Crucibiscutum cf.hayiLate Albian
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Crucibiscutum hayiEarly Hauterivian - Early Cenomanian
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Prediscosphaera parvodeceptaLate Aptian - Late Maastrichtian
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Prediscosphaera deceptaLate Albian - Late Maastrichtian
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Prediscosphaera mgayaeEarly Cenomanian - Early Maastrichtian
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Prediscosphaera ponticulaEarly Santonian - Late Santonian
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Prediscosphaera occlusaEarly Maastrichtian
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Prediscosphaera curvibrachiaEarly Campanian - Late Campanian
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Prediscosphaera grandisLate Santonian - Late Maastrichtian
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Prediscosphaera desiderograndisLate Santonian - Late Maastrichtian
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Prediscosphaera cretaceaEarly Albian - Late Maastrichtian
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Prediscosphaera catinaEarly Albian - Late Coniacian
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Prediscosphaera cantabrigensisEarly Albian - Late Coniacian
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Prediscosphaera majungaensisLate Campanian - Late Maastrichtian
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Prediscosphaera rzehakiiLate Campanian - Late Maastrichtian
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Prediscosphaera stoveriLate Campanian - Late Maastrichtian
