Taxonomy: Life's Filing System - Crash Course Biology #19
Learn Biology: Classification- The Taxonomic Hierarchy
What Is Taxonomic Hierarchy - Diversity in Organisms - Biology Class 11
L5: Taxonomic Hierarchy Simplfied- The Living world, chapter 1, class 11 biology
Taxonomy and Taxonomic Hierarchy (Biological Classification of Living Things)
In biological classification, class is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the prefix sub-: subclass. For example, dogs are in the class Mammalia.