Wilsonidium subtile
From dinoflaj2
subtile He Chengquan and Wang Kede, 1990, p.418,424, pl.2, fig.3; text-fig.2. Holotype: He Chengquan and Wang Kede, 1990, pl.2, fig.3; text-fig.2. Age: late Early Eocene.
Parent: Wilsonidium