Class (biology)

Dominion

Kingdom

Fill odivision

Class

Order

Family

Gender

Species

Primary taxonomic categories

In biology, the class is a taxonomic category, located between the phylum or division and the order, which encompasses different groups of organisms depending on the characteristics they possess and the similarity they present mutually.

Nomenclature

In plants, class names must be suffixed with "-opsida" (Magnoliopsida); in algae, the classes should end in "-phyceae" (Chlorophyceae) and in fungi they should end in "-mycetes" (Agaricomycetes).

The subclass also bears specific suffixes in plants («-idae», such as Rosidae), algae («-phycidae») and fungi («-mycetidae»).

In animals and bacteria there is no obligation of a specific suffix to name the classes or subclasses (Mammalia, Insecta or Cephalopoda; Bacilli or Mollicutes).

Divisions

If the classification requires it, new categories can be inserted between the class and the edge, the most used being the superclass. In the same way, categories can be inserted between the class and the order, frequently using the subclass and the infraclass.

• FILO or DIVISION
  • Superclass (Superclassis)
    • CLASE (Classis)
      • Subclass (Subclassis)
        • Infraclass (Infraclassis)
          • ORDEN