Difference between revisions of "Bipolaribucina conicosa"

Revision as of 13:19, 2 December 2016

"conicosa" Jiabo, 1978, p.57, pl.29, figs.4-5.  Holotype: Jiabo, 1978, pl.29, fig.4.  NOW Palaeohystrichodinium.  Originally Bipolaribucina, subsequently Impletosphaeridium, thirdly (and now) Palaeohystrichodinium.  Age: early Tertiary.