Taxonomy clear
-
Helicosphaeroides girgisiiSerravalian - Tortonian
-
Helicosphaera wallichiiTortonian - Meghalayan
-
Helicosphaera selliiMessinian - Calabrian
-
Helicosphaerella rectaLatdorfian - Burdigalian
-
Helicosphaerella orientalisSerravalian - Tortonian
-
Helicosphaerella philippinensisLanghian - Tortonian
-
Helicosphaera neogranulataCalabrian
-
Helicosphaeroides mulleraeLanghian - Serravalian
-
Helicosphaera inversaChibanian
-
Helicosphaera bowniiLanghian - Serravalian
-
Emiliania huxleyiChibanian - Meghalayan
-
Cribrocentrum albitectusBartonian - Burdigalian
-
Cribrocentrum gartneriLutetian - Burdigalian
-
Helicosphaera mediterraneaBurdigalian
-
Coccolithus cf.miopelagicusChattian - Tortonian
-
Crystallolithus hyalinusExtant
-
Cyclicargolithus neogammationLutetian - Serravalian
-
Cyclicargolithus abisectusRupelian - Aquitanian
