Neogene: Ilselithina; Ilselithina fusa
Paleogene: Ilselithina fusa
Ilselithina fusa Roth, 1970
Description: Placolith-like coccolith but with distal shield reduced to ring of spines, usually seen in cross-section.
Remarks:
Original description:
Neogene: Ilselithina; Ilselithina fusa
Paleogene: Ilselithina fusa