Nyktericysta beierensis Wan Chuanbiao and Zhang Ying, 1990, p.8–9, pl.1, figs.1–4. Emendation: Mao Shaozhi et al., 1999, p.154. Holotype: Wan Chuanbiao and Zhang Ying, 1990, pl.1, fig.4. Wan Chuanbiao and Zhang Ying (1990, p.8,13) assigned this species to Nyktericysta subgenus Hastodinium. Age: Early Cretaceous.