1. Middle Miocene to quaternary diatom biostratigraphy in the Nankai trough and Japan trench, and modified lower Miocene through quaternary diatom zones for middle-to-high latitudes of the north Pacific;Akiba,1986
2. Taxonomy, morphology and phylogeny of the Neogene diatom zonal marker species in the middle-to-high-latitudes of the North Pacific;Akiba,1986
3. Stratigraphy and fossil diatoms of drill cores from a well in Niiza-shi, Saitama Prefecture, the northern part of Musashino Plain;Akutsu;Bull. Geol. Surv. Jpn.,1971
4. Taxonomy and stratigraphic occurrence of the marine diatom genus Rhaphoneis;Andrews,1975
5. Revision of the diatom genus Delphineis and morphology of Delphineis surirella (Ehrenberg) G.W. Andrews, n. comb;Andrews,1981