Chrysophyceae - Phytomastigophora
Parent taxon: Chrysophyceae according to D. Harwood 1988
Sister taxa: Acanthosphaeridium, Archaeosphaeridium, Bolboforma, Bullasphaera, Clathropyxidella, Litharchaeocystis, Nothyocha, Pseudorocella
Subtaxa: Dictyochaceae
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• NN21 of Indian Ocean (2 collections), North Pacific (1), South Atlantic (1)
• Brunhes of North Pacific (2)
• Quaternary of Indian Ocean (30), North Pacific (150), South Atlantic (7), Southern Ocean (16)
• Pliocene to Pleistocene of North Pacific (5)
• Pliocene of Indian Ocean (1), North Pacific (23), Southern Ocean (4)
• NN12 of Indian Ocean (3)
• Miocene to Pliocene of North Pacific (3)
• Miocene of Chile (1), Indian Ocean (3), Mexico (2), North Pacific (59), Peru (1), South Atlantic (2), Southern Ocean (8), United States (1: North Carolina)
• Neogene of India (1)
• Oligocene of Southern Ocean (2)
• Eocene of Southern Ocean (1), United States (1: California)
• Paleocene of Antarctica (11)
• Cretaceous of Antarctica (17)
Total: 358 collections including 931 occurrences