Dinogymnium ovatum
From dinoflaj2
"ovatum" Jiabo, 1978, p.94, pl.6, fig.1. Holotype: Jiabo, 1978, pl.6, fig.1. NOW Tianjinella ovata. Originally Dinogymnium ovatum, subsequently Microdinium jiaboense, thirdly (and now) Tianjinella ovata. Age: Early Tertiary.
Parent: Dinogymnium