[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885) Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914 Family Hapalosiphonaceae Elenkin (1917), nom. cons. see Family Hapalosiphonaceae Elenkin 1917 Genus Mastigocoleopsis Geitler (1925) see Genus Mastigocoleopsis Geitler 1925