Taxonomy clear
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Sphenolithus anarrhopusYpresian - Thanetian
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Sphenolithus pseudoradiansRupelian - Priabonian
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Sphenolithus cometaBurdigalian - Aquitanian
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Sphenolithus tintinnabulumBurdigalian - Aquitanian
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Sphenolithus porrectusAquitanian
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Sphenolithus disbelemnosBurdigalian - Aquitanian
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Sphenolithus spinigerBartonian - Ypresian
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Sphenolithus conicusAquitanian - Chattian
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Furcatolithus predistentusRupelian - Latdorfian
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Sphenolithus milanettiLanghian - Burdigalian
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Furcatolithus distentusChattian - Rupelian
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Furcatolithus ciperoensisChattian - Rupelian
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Furcatolithus obtususBartonian - Lutetian
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Furcatolithus akropodusRupelian - Latdorfian
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Furcatolithus celsusChattian - Bartonian
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Sphenolithus radiansRupelian - Thanetian
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Sphenolithus editusYpresian
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Sphenolithus belemnosBurdigalian
