Neogene North Pacific Diatom Biochronology
31International timescale
Holocene
Meghalayan
Northgrippian
Greenlandian
Pleistocene
Late Pleistocene
Chibanian
Calabrian
Gelasian
Pliocene
Piacenzian
Zanclean
Miocene
Messinian
Tortonian
Serravallian
Langhian
Burdigalian
Aquitanian
Oligocene
Chattian
Neogene North Pacific Diatom Biochronology
Neodenticula seminae
Proboscia curvirostris
Actinocyclus oculatus
Neodenticula koizumii
Neodenticula koizumii - Neodenticula kamtschatica
Neodenticula kamtschatica
Thalassionema schraderi - Denticulopsis katayamae
Denticulopsis hyalina - Denticulopsis lauta
Crucidenticula sawamurae - Thalassiosira fraga
Thalassiosira praefraga
Zone
Neodenticula seminaeProboscia curvirostrisActinocyclus oculatusNeodenticula koizumiiNeodenticula koizumii - Neodenticula kamtschaticaNeodenticula kamtschaticaThalassionema schraderi - Denticulopsis katayamaeDenticulopsis dimorpha - Crucidenticula nicobaricaDenticulopsis hyalina - Denticulopsis lautaCrucidenticula sawamurae - Thalassiosira fragaThalassiosira praefraga
