Taxonomy clear
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Bownia mutterloseiEarly Valanginian - Early Cenomanian
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Aktasia trabeculatusLate Albian - Late Maastrichtian
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Aktasia parvaLate Albian - Late Coniacian
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Aktasia turonicusLate Cenomanian - Late Coniacian
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Aktasia obscuraMiddle Campanian
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Aktasia leckieiLate Aptian - Middle Campanian
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Aktasia exarthromenosLate Albian
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Aktasia compactaEarly Cenomanian - Early Maastrichtian
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Boletuvelum phossonosEarly Campanian - Late Campanian
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Boletuvelum candensLate Coniacian - Early Maastrichtian
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Biscutum sp. AEarly Cenomanian
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Biscutum centriperforatusLate Albian - Early Coniacian
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Biscutum testudinariumEarly Cenomanian - Late Cenomanian
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Biscutum bellisEarly Campanian - Late Campanian
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Biscutum rotatoriusLate Aptian - Middle Campanian
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Biscutum ignotumEarly Aptian - Late Maastrichtian
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Biscutum monocavumEarly Berriasian - Late Santonian
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Bifidalithus geminicatillusEarly Turonian - Middle Campanian
