Spiniferites cornutus var. aspinatus
From dinoflaj2
"var. aspinatus" Cookson and Eisenack, 1974, p.63, pl.23, fig.6. Holotype: Cookson and Eisenack, 1974, pl.23, fig.6. NOW Impagidinium aspinatum. Originally Spiniferites cornutus var. aspinatus, subsequently Spiniferites cornutus subsp. aspinatus, thirdly (and now) Impagidinium aspinatum. Age: Paleocene. Parent: Spiniferites cornutus
