Circulodinium ?micibaculatum, (Jiabo, 1978, p.54, pl.7, figs.1–2), He Chengquan et al., 2009, p.271.

Originally Canningia, subsequently Canningia?, thirdly (and now) Circulodinium?. Questionable assignment: He Chengquan et al. (2009, p.271).

Holotype: Jiabo, 1978, pl.7, fig.1.
Age: Early Tertiary.