overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Sphenolithus conicus Bukry, 1971
Description: Similar to S. moriformis but with a diminutive apical spine.
Remarks:
Original description:
Neogene: Sphenolithus; Sphenolithus conicus
Paleogene: Sphenolithus conicus