Impletosphaeridium polypes subsp. densum
From dinoflaj3
"subsp. densum" He Chengquan and Li Peng, 1981, p.65, pl.31, figs.14–17; text-fig.6. Holotype: He Chengquan and Li Peng, 1981, pl.31, fig.14; text-fig.6. NOW Impletosphaeridium densum. Originally Impletosphaeridium polypes subsp. densum, subsequently Kiokansium polypes subsp. densum, thirdly (and now) Impletosphaeridium densum. Age: late Oligocene.
Parent: Impletosphaeridium polypes