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Wikipedia: Linnaean taxonomy
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Linnaean Taxonomy divides living things into five top-level groups, called kingdoms:
- Kingdom Monera - bacteria, blue-green algae, etc.
- Kingdom Protista - basal protozoa, algae, etc.
- Kingdom Plantae - green algae & plants
- Kingdom Fungi - chytrids & fungi
- Kingdom Animalia - animals
and then further into phylum, class, order, family, genus and species. One way to remember the ordering is "King Phillip Came Over For Great Spaghetti". This is based closely on the scheme established by Carolus Linnaeus, but over time has changed to reflect different considerations about the relationships of living things; with the advent of evolution, it is generally encouraged that groups be monophyletic?.
The five kingdom view has largely been supplanted by the three domain view in modern taxonomic work. This was precipitated by the discovery of the Archaea. In one version of the three domain view (that taken by the NCBI taxonomy http://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html site), the following domains are the fundamental division with sub-divisions as indicated. Basically, what happens is that the old five kingdom stuff gets rearranged between Archaea, Prokaryotes and all Eukaryotes. Eukaryotes gets divided into many bits with the plants as we usually think of them going into one area, the algae going many different places, the fungi into a few places and animals getting put into a separate group with a few single celled items.
- Crenarchaeota (extremely thermophilic archaebacteria)
- Euryarchaeota
- Korarchaeota
- unclassified Archaea
- Domain Bacteria (i.e. Eubacteria or true bacteria)
- Aquificales
- CFB/Green? sulfur bacteria group
- Chlamydiales/Verrucomicrobia? group
- Chrysiogenes group
- Coprothermobacter group
- Cyanobacteria (blue-green algae)
- Dictyoglomus group
- Fibrobacter/Acidobacteria? group
- Firmicutes (gram-positive bacteria)
- Flexistipes group
- Fusobacteria
- Green non-sulfur bacteria
- Nitrospira group
- Nitrospira group
- Proteobacteria
- Spirochaetales
- Synergistes group
- Thermodesulfobacterium group
- Thermotogales
- Thermus/Deinococcus? group
- unclassified Bacteria
- Acanthamoebidae
- Acantharea
- Alveolata (alveolates)
- Cercozoa
- core jakobids
- Cryptophyta (cryptomonads)
- Diplomonadida (diplomonads)
- Entamoebidae
- Euglenozoa
- Glaucocystophyceae
- Granuloreticulosea
- Haptophyceae
- Heterolobosea
- Malawimonadidae
- Microsporidia
- Mycetozoa
- Opisthokonta (Animalia, Fungi, Choanoflagellates?)
- Oxymonadida
- Parabasalidea (parabasalids)
- Paramyxea
- Plasmodiophorida
- Polycystinea
- Ramicristates
- Rhodophyta? (red algae)
- Stramenopiles (heterokonts)
- Viridiplantae] (green plants)
- unclassified eukaryotes