plantenrijk Haeckel (1866) - plants [Division] Protophyta Sachs 1874 - primitive plants Class Schizomycetes Nägeli 1857 (Approved Lists 1980) - bacteria and related forms Order Myxobacteriales 1 Family Cytophagaceae Stanier 1940 (Approved Lists 1980) 2 Family Myxococcaceae Jahn 1924 (Approved Lists 1980)