Linnaean taxonomy
Linnaean taxonomy can mean either of two related concepts:
- The particular form of biological classification (taxonomy) established by Carl Linnaeus, as set forth in his Systema Naturae (1735) and subsequent works. In his taxonomy Linnaeus described three kingdoms, each divided into classes, and the classes divided into lower ranks in hierarchical order.
- A general term for ranked classification of organisms. That is, taxonomy in the traditional sense of the word: rank-based scientific classification—which especially is used as opposed to the method of cladistic systematics, which groups organisms into clades.
Ranked classification is attributed to Linnaeus even though he neither invented the concept (which goes back to Plato and Aristotle), nor gave it its present form(s). In fact, ranked classification does not have a defined form, as "Linnaean taxonomy" does not exist as such. Instead it is a collective (abstracting) term for several separate fields used for similar approaches.
Linnaean name also has two meanings, depending on the context: it may either refer to a formal name given by Linnaeus himself, such as Giraffa camelopardalis Linnaeus, 1758; or a formal name in the accepted nomenclature.