Taxonomy clear
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Helicosphaera pterigaChibanian
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Helicosphaera carteri treisporoiRecent - Tortonian
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Helicosphaera carteri rotundusRecent - Burdigalian
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Helicosphaera kamptneriRecent - Burdigalian
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Helicosphaera epimikeisporousRecent - Serravalian
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Pontosphaera lepidaTarantian - Zanclean
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Pontosphaera jonesiiTarantian - Messinian
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Pontosphaera wondersiiDanian
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Umbellosphaera tenuisRecent - Zanclean
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Tintinnabuliformis bicornusZanclean - Serravalian
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Tintinnabuliformis unicornCalabrian - Serravalian
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Scampanella wiseiThanetian - Danian
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Rigaudia multiradiataRecent - Zanclean
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Micrascidites vulgarisRecent - Thanetian
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Bonetia brevisRecent - Langhian
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Bonetia acutaRecent - Langhian
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Monniotia aciformisRecent - Zanclean
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Noelaerhabdus bozinovicaeTortonian
