Hystrichosphaeridium spiculare
From dinoflaj3
spiculare Jagielska, 1962a, p.62, pl.5, figs.6a–b. Holotype: Jagielska, 1962a, pl.5, fig.6a. This is probably an acritarch species. Jagielska (1962b, table 2 — p.337) also cited this species as new, but no description was provided. Age: Ordovician (Arenig–Caradoc).
Parent: Hystrichosphaeridium