Achomosphaera valianta
From dinoflaj3
"valianta" Sah et al., 1970, p.145, pl.1, figs.8–9. Holotype: Sah et al., 1970, pl.1, fig.8. Originally Achomosphaera, subsequently Cordosphaeridium. Taxonomic senior synonym: Cordosphaeridium fibrospinosum, according to Fensome et al. (2009, p.23). Taxonomic senior synonym: Cordosphaeridium exilimurum, according to Jain (1982, p.52). Age: Late Cretaceous.
Parent: Achomosphaera