Rhombodinium turgaicum Vasilyeva in Vasilyeva et al., 2001, p.72, pl.3, figs.4–6 ex Vasilyeva in Andreeva-Grigorovich et al., 2011, p.57–58, pl.25, figs.3,5. Holotype: Vasilyeva et al.,2001, pl.3, fig.5; Andreeva-Grigorovich et al., 2011, pl.25, fig.3. This name was not validly published in Vasilyeva et al. (2001), since no English or Latin diagnosis was provided. Age: Bartonian.