Cleistosphaeridium multifurcatum subsp. latoaculeum

"subsp. latoaculeum" Yun Hyesu, 1981, p.42-43, pl.11, figs.17-19.  Holotype: Yun Hyesu, 1981, pl.11, fig.18; Fensome et al., 1991, fig.2 - p.657; fig.2 - p.693 (mislabelled as Cleistosphaeridium multifurcatum subsp. multifurcatum); Fensome et al., 1993a, fig.2 - p.1261; Fauconnier and Masure, 2004, pl.35, figs.9-10.  NOW Circulodinium latoaculeum.  Originally Cleistosphaeridium multifurcatum subsp. latoaculeum, subsequently Heterosphaeridium latoaculeum, thirdly (and now) Circulodinium latoaculeum.  Age: Early Santonian. Parent: Cleistosphaeridium multifurcatum