In biological taxonomy, class (Latin: classis) is a taxonomic rank, as well as a taxonomic unit (i.e., a taxon) in that rank. It is a group of related taxonomic orders.

Dec 2, 2025 · Although he introduced the standard hierarchy of class, order, genus, and species, his main success in his own day was providing workable keys, making it possible to identify …

Under the most widely used system of biological classification, known as the Linnean system, every taxon is then put into a hierarchy based on its taxonomic rank. The lowest level of …

Aug 18, 2025 · Biological classification employs a hierarchical system, meaning organisms are grouped into nested categories from broad to specific. This structure, largely based on the …

Jun 16, 2022 · In the biological classification of organisms, a class is a major taxonomic rank below the phylum (or division) and above the order. For example, class Mammalia belongs to …

The taxonomic classification system (also called the Linnaean system after its inventor, Carl Linnaeus, a Swedish botanist, zoologist, and physician) uses a hierarchical model. Moving …

In biology, taxonomy (from Ancient Greek τάξις (taxis) 'arrangement' and -νομία (-nomia) ' method ') is the scientific study of naming, defining (circumscribing) and classifying groups of biological …

Taxonomy is the branch of science concerned with naming, describing, and classifying organisms. grouping species based on shared ancestry and evolutionary relationships. Unlike other …

May 14, 2025 · Get a brief overview of the levels of classification in biological taxonomy — domain, kingdom, phylum, class, order, family, genus, species.

Jul 2, 2025 · Defining ‘Class’: Shared Ancestry and Derived Traits. A biological class represents a taxonomic grouping of organisms that share a significant number of derived characteristics …