From Williams et al., 2017:

[Neodiacrodium, Fedorova-Shakhumundes, 1976, p.94
Acritarch, according to Fedorova-Shakhumundes, 1976. Lentin in Lentin and Williams, 1993, examined the type material, and determined that it is a dinoflagellate with a 2P archaeopyle.

Type species: Neodiacrodium longiprocessatum, Fedorova-Shakhumundes, 1976 (pl.1, figs.7,7a)]