NationMaster - Encyclopedia: Superkingdom

In biology, a domain or empire is the top-level grouping of organisms in scientific classification. Originally three kingdoms were distinguished: the fauna for animals, and the flora (Vegetabilia) for plants. Early authors also treated minerals in a third kingdom Mineralia. This corresponds to the old saying animal, vegetable or mineral?.

Today there are several competing domain classifications of life.

Three-domain system of Carl Woese, introduced in 1990, and featuring Archaea, Eubacteria, and Eukaryota.
Two-empire system featuring Prokaryota (or Monera) and Eukaryota.

All Living Things, in Seven Kingdoms (2374 words)
	Superkingdom Progenotes.....first cells Superkingdom* Archaebacteriae Kingdom Protomonera.......archaic bacteria Superkingdom Eubacteria Kingdom Monera............bacteria Superkingdom Urkaryotes* Superkingdom Eukaryotes......cells with nuclei Kingdom Protista..........protozoans Kingdom Myxomycophyta.....slime molds Kingdom Plantae............plants Kingdom Fungi..............fungi Kingdom Animalia...........animals
	The idea of the Superkingdoms is intended to represent this, with two extinct Superkingdoms for transitional forms that now no longer exist.
	The Superkingdoms are thus based on the stages in the evolution of structure of the cell.

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