<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (August 2007) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (August 2007) (Learn how and when to remove this template message) </Td> </Tr> <P> Linnaean taxonomy can mean either of two related concepts: </P> <Ol> <Li> the particular form of biological classification (taxonomy) set up by Carl Linnaeus, as set forth in his Systema Naturae (1735) and subsequent works . In the taxonomy of Linnaeus there are three kingdoms, divided into classes, and they, in turn, into orders, genera (singular: genus), and species (singular: species), with an additional rank lower than species . </Li> <Li> a term for rank - based classification of organisms, in general . That is, taxonomy in the traditional sense of the word: rank - based scientific classification . This term is especially used as opposed to cladistic systematics, which groups organisms into clades . It is attributed to Linnaeus, although he neither invented the concept of ranked classification (it goes back to Plato and Aristotle) nor gave it its present form . In fact, it does not have an exact present form, as "Linnaean taxonomy" as such does not really exist: it is a collective (abstracting) term for what actually are several separate fields, which use similar approaches . </Li> </Ol>

Classify each term at the left as being part of linnaeus