Taxonomy clear
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Furcatolithus intercalarisBartonian - Priabonian
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Sphenolithus orphanknollensisYpresian
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Furcatolithus distentusRupelian - Chattian
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Furcatolithus humerusRupelian - Chattian
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Furcatolithus peartiaeLatdorfian - Chattian
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Furcatolithus ciperoensisRupelian - Chattian
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Furcatolithus obtususLutetian - Bartonian
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Furcatolithus avisChattian
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Furcatolithus ascellaRupelian - Chattian
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Furcatolithus akropodusLatdorfian - Rupelian
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Furcatolithus bulbulusChattian
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Furcatolithus celsusBartonian - Chattian
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Sphenolithus radiansThanetian - Rupelian
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Sphenolithus abiesLanghian - Piacenzian
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Sphenolithus pacificusSelandian - Zanclean
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Sphenolithus moriformisSelandian - Ypresian
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Sphenolithus editusYpresian
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Sphenolithus conspicuusYpresian
