Explanation

The framework system of classification in which various taxonomic categories are arranged in an order of logical sequence is called taxonomic hierarchy, a taxonomic category of overall taxonomic arrangement. All categories together make taxonomic hierarchy. It is also called Linnaean hierarchy as it was first proposed by C Linnaeus. There are seven obligate categories-Kingdom, Division (in plants) or Phylum (in animals), Class, Order, Family, Genus and Species.