Thoracosphaera spinosa
From dinoflaj2
"spinosa" Keupp, 1979a, p.17-18, pl.1, fig.6. Holotype: Keupp, 1979a, pl.1, fig.6. NOW Pirumella. Originally Thoracosphaera, subsequently Pithonella, thirdly Obliquipithonella, fourthly (and now) Pirumella. Age: Early Barremian.
Parent: Thoracosphaera
