Taxonomy clear
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Sphenolithus editusYpresian
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Sphenolithus conspicuusYpresian
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Sphenolithus belemnosBurdigalian
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Sphenolithus heteromorphusSerravalian - Burdigalian
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Rhabdosphaera herculesiiLutetian - Ypresian
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Arkhangelskiella clivosaEarly Maastrichtian - Early Turonian
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Rhabdosphaera rectusChattian - Latdorfian
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Rhabdosphaera siccusZanclean - Burdigalian
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Rhabdosphaera inflataLutetian
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Rhabdosphaera sp.Recent - Burdigalian
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Rhabdosphaera vitreaRupelian - Ypresian
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Rhabdosphaera proceraZanclean - Burdigalian
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Rhabdosphaera clavigeraRecent - Burdigalian
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Blackites perlongusLutetian - Ypresian
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Rhabdosphaera pinguisLutetian - Ypresian
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Blackites morionumLutetian - Ypresian
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Blackites truncatusYpresian
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Blackites incompertusRupelian - Ypresian
