Taxonomy clear
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Neochiastozygus chiastusYpresian - Thanetian
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Neochiastozygus alabamaensisDanian
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Pontosphaera discoporaRecent - Langhian
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Pontosphaera apocresisRecent - Aquitanian
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Pontosphaera callosaRecent - Serravalian
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Pontosphaera desuetoideaTortonian - Langhian
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Pontosphaera geminiporaSerravalian - Langhian
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Pontosphaera payneiRecent - Calabrian
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Pontosphaera rimosaLutetian - Thanetian
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Pontosphaera rorsaRecent - Zanclean
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Pontosphaera versaLutetian - Thanetian
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Pontosphaera trenaRecent - Aquitanian
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Rotelapillus tesserisbaresEarly Coniacian - Early Turonian
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Davidhakania saepesSelandian - Danian
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Davidhakania partingtoniiDanian
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Davidhakania imbrieiDanian
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Davidhakania eosaepesDanian
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Helenemanivitia colombianaLate Maastrichtian - Late Campanian
