Shublikodinium armatum
From dinoflaj3
"armatum" Wiggins, 1973, p.6, pl.5, fig.1. Holotype: Wiggins, 1973, pl.5, fig.1. Taxonomic senior synonym: Shublikodinium (as and now Rhaetogonyaulax) arcticum, according to Stover and Evitt (1978, p.219). Age: Late Triassic.
Parent: Shublikodinium