Ichikawa et al., 1964
From dinoflaj2
Ichikawa, W., Fuji, N. and Bachmann, A., 1964: Fossil diatoms, pollen grains and spores, silicoflagellates and arachaeomonads in the Miocene Hojuji diatomaceous mudstone, Noto Peninsula, Central Japan. Kanazawa Daigaku, Rigakubu (Science Reports of Kanazawa University), v.9, no.1, p.25-118, pl.1-13 and 1-7.
