overview (8)
Arkhangelskiales (2)
Eiffellithales (3)
Holococcoliths (26)
Nannoliths (10)
Podorhabdales (7)
Watznaueriales (1)
an extremeley common and very long ranging species, it varies greatly in size and probably is in fact a plexus of lots of species - Jeremy Young (e.g. Geisen et al 2004)
Neogene: Coccolithus pelagicus
Paleogene: Coccolithus pelagicus