Taxonomy clear
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Coronosphaera oneilliiTortonian
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Coronosphaera clathrataLatdorfian - Aquitanian
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Coccolithus bowniiThanetian - Ypresian
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Coccolithus formosusDanian - Latdorfian
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Coccolithus anulatusThanetian - Lutetian
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Coccolithus crassiponsThanetian - Gelasian
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Coccolithus sarsiaeDanian - Recent
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Coccolithus paralitosYpresian - Zanclean
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Coccolithus occidentalisThanetian - Lutetian
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Helicosphaerella gartneriLatdorfian - Chattian
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Helicosphaerella bramletteiPriabonian - Rupelian
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Helicosphaeroides salebrosaLutetian - Bartonian
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Helicosphaeroides heezeniiLutetian
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Helicosphaera papillataYpresian - Lutetian
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Helicosphaera prolixaLutetian - Bartonian
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Helicosphaerella robinsoniaePriabonian - Rupelian
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Helicosphaeroides reticulataLutetian - Rupelian
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Helicosphaerella compactaLutetian - Rupelian
