- In biological taxonomy, Kingdom is a taxonomic rank.
- Historically it is was the highest taxonomic rank.
- In the new three-domain system of classification - Kingdom is the rank below domain.
- The Kingdoms are divided into smaller groups called phyla.
- There is some difference between USA and British-Australian textbooks regarding the number of Kingdoms (see below).
- The taxonomy classifications are - Life - Domain - Kingdom - Phylum - Class - Order - Family - Genus - Species [LD-KPCOFGS]
- A number of mnemonic systems have been developed to remember the taxonomy classification - see here.
- Carolus Linnaeus (1735) first distinguished two kingdoms of living things: Animalia for animals and Vegetabilia for plants.
- Linnaeus also considered minerals - placing them in a 3rd kingdom - Mineralia.
- Linnaeus then divided each kingdom into classes which were later grouped into phyla for animals & divisions for plants.
- Haeckel (1866) proposed 3 Kingdoms - Animalia / Plantae / Protista.
- Chatton (1925) proposed 2 groups - Eukaryote / Procaryote.
- Copeland (1938) proposed 4 Kingdoms - Animalia / Plantae / Protoctista / Monera.
- Whittaker (1969) proposed 5 Kingdoms - Animalia / Plantae / Fungi / Protista / Monera.
- Woese (1977, 1990) proposed 2 Domains - Eukarya / Archaea / Bacteria.
- Animalia
- Plantae
- Fungi
- Protista
- Prokaryota / Monera
- Animalia
- Plantae
- Fungi
- Protista
- Archea
- Bacteria
Posted by ALCHEssMIST.
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