overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
Alveosphaera Jordan & Young 1990
Description: Coccosphere with elongate oblong muroliths, with central area floored by transverse laths; monomorphic.
Remarks: No fossil record but it would be readily distinguishable from Calciosolenia if found
Type species: A. bimurata
Neogene: Alveosphaera