Sphaerodinella tuberosa forma elongata
From dinoflaj3
"forma elongata" Hildebrand-Habel et al., 1999, p.83, pl.5, figs.5–7; text-fig.6A–B. Holotype: Hildebrand-Habel et al., 1999, pl.5, figs.5–6. NOW Calciodinellum elongatum. Originally Sphaerodinella? tuberosa forma elongata, subsequently Calciodinellum elongatum (combination not validly published), thirdly Pernambugia tuberosa forma elongata, fourthly (and now) Calciodinellum elongatum. Age: middle Eocene.
Parent: Sphaerodinella tuberosa