oxyphototroph prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval. Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes Order Chroococcales Ardissone (1887) see Order Chroococcales corrig. Ardissone 1887 Family Microcystaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933 Form genus Sphaerocavum Azevedo & Sant'Anna (2003) see Genus Sphaerocavum Azevedo and Sant'Anna 2003