Phylogeny and a revised suprageneric classification for Triassic - Quaternary organic-walled dinoflagellate cysts, (pyrrhophyta) Part I. Cyst terminology and assessment of previous classifications.
Reference:
Norris,G. (1978)
Phylogeny and a revised suprageneric classification for Triassic - Quaternary organic-walled dinoflagellate cysts, (pyrrhophyta) Part I. Cyst terminology and assessment of previous classifications. Neues Jahrbuch fмr Geologie und Pal¤ontologie. Abhandlungen
Vol. 155 # 3 P. 300- 317