Taxonomy clear
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Gorkaea obliqueclaususLate Campanian - Middle Campanian
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Gorkaea cruciformisLate Aptian - Early Berriasian
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Gorkaea brevisLate Cenomanian - Early Aptian
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Gorkaea exiguusLate Cenomanian - Early Hauterivian
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Gorkaea pomeroliiLate Maastrichtian - Late Aptian
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Gorkaea pseudanthophorusLate Maastrichtian - Early Tithonian
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Zeugrhabdotus kerguelenensisCampanian - Cenomanian
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Zeugrhabdotus embergeriLate Maastrichtian - Early Tithonian
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Asynithistostoichos coxalliaeLate Campanian - Late Aptian
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Catinaster coalitusTortonian
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Discoaster splendidusThanetian
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Discoaster nobilisEarly Eocene - Late Paleocene
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Discoaster misofengaroThanetian
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Discoaster akinolguniiThanetian
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Isespetrinesaspides foteinokentroThanetian
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Watznaueria paenepelagicusLate Maastrichtian - Early Berriasian
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Cyclagelosphaera riyadhensisHauterivian - Valanginian
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Watznaueria fossacinctaMaastrichtian - Aalenian
