Oligosphaeridium speciale

speciale Xu Jinli et al., 1997, p.83–84, pl.14, fig.2 ex He Chengquan et al., 2009, p.658.  Holotype: Xu Jinli et al., 1997, pl.14, fig.2.  This name was not validly published in Xu Jinli et al. (1997), since no English or Latin description was provided; He Chengquan et al. (2009, p.658) validated the name by publishing an English diagnosis.  Age: middle-late Eocene.

Parent: Oligosphaeridium