The last commonly accepted mega-classification with the taxon Monera was the five-kingdom classification system established by Robert WhittakerUnder the three-domain system of Taxonomy and Eukarya are currently believed to be more closely related than either is to Bacteria.
The last commonly accepted mega-classification with the taxon Monera was the five-kingdom classification system established by Robert Whittaker in 1969. Furthermore, the taxon Monera is paraphyletic (does not include all descendants of their most recent common ancestor), as Archaea and Eukarya are currently believed to be more closely related than either is to Bacteria.