overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Heterococcoliths inc sed (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Stephanolithiales (2)
Watznaueriales (1)
Paleogene (9)
Coccolithales (2)
Coccoliths ord inc sed (2)
Discoasterales (4)
Holococcoliths (1)
Isochrysidales (2)
Mesozoic Survivors (4)
Nannoliths ord inc sed (5)
Syracosphaerales (3)
Zygodiscales (3)
S. moriformis, zone NN2. Scale marks at 5 micron intervals
Neogene: Sphenolithus moriformis