Thoracosphaera tesserula
From dinoflaj2
"tesserula" Fütterer, 1978, p.715, pl.3, figs.1-8,10-11. Holotype: Fütterer, 1978, pl.3, figs.1,4,7,10. NOW Fuettererella. Originally Thoracosphaera, subsequently Orthopithonella (combination not validly published), thirdly (and now) Fuettererella. N.I.A. Age: Paleocene-Late Oligocene.
Parent: Thoracosphaera