overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Calciosolenia aperta (Hay & Mohler, 1967) Bown, 2005
Description: Broad, rhomboidal scapholith with broad flaring rim and central area spanned by transverse bars and thick, distal longitudinal bar.
Remarks:
Synonym:Scapholithus rhombiformis Hay & Mohler 1967.
Neogene: Calciosolenia
Paleogene: Calciosolenia aperta