Songiella foveolata Xu Jinli et al., 1997, p.59–60, pl.3, figs.4a–b,6a–b,7a–b ex He Chengquan et al., 2009, p.368,667. Holotype: Xu Jinli et al., 1997, pl.3, figs.4a–b. 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.667) validated the name by publishing an English diagnosis. Age: middle-late Eocene.