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  2. Class (biology) - Wikipedia

    en.wikipedia.org/wiki/Class_(biology)

    In biological classification, class (Latin: classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. [a] Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order. [1]

  3. List of animal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_animal_classes

    The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by ...

  4. Taxonomic rank - Wikipedia

    en.wikipedia.org/wiki/Taxonomic_rank

    In his landmark publications, such as the Systema Naturae, Carl Linnaeus used a ranking scale limited to kingdom, class, order, genus, species, and one rank below species. Today, the nomenclature is regulated by the nomenclature codes. There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, and species.

  5. Taxonomy (biology) - Wikipedia

    en.wikipedia.org/wiki/Taxonomy_(biology)

    Systematic biology (hereafter called simply systematics) is the field that (a) provides scientific names for organisms, (b) describes them, (c) preserves collections of them, (d) provides classifications for the organisms, keys for their identification, and data on their distributions, (e) investigates their evolutionary histories, and (f ...

  6. Order (biology) - Wikipedia

    en.wikipedia.org/wiki/Order_(biology)

    It is classified between family and class. In biological classification , the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes . An immediately higher rank, superorder , is sometimes added directly above order, with suborder directly beneath order.

  7. Clade - Wikipedia

    en.wikipedia.org/wiki/Clade

    The original population and all its descendants are a clade. The rodent clade corresponds to the order Rodentia, and insects to the class Insecta. These clades include smaller clades, such as chipmunk or ant, each of which consists of even smaller clades. The clade "rodent" is in turn included in the mammal, vertebrate and animal clades.

  8. Category:Classes (biology) - Wikipedia

    en.wikipedia.org/wiki/Category:Classes_(biology)

    Taxonomic classes sorted by domain (Archaea, Bacteria, Eukaryotes) or by informal grouping (Algae). Subcategories This category has the following 6 subcategories, out of 6 total.

  9. Human taxonomy - Wikipedia

    en.wikipedia.org/wiki/Human_taxonomy

    Human taxonomy is the classification of the human species within zoological taxonomy. The systematic genus, Homo, is designed to include both anatomically modern humans and extinct varieties of archaic humans.