∞ generated and posted on 2016.09.02 ∞

Major taxonomic unit found immediately above the level of class.

As listed in descending hierarchical order (from more inclusive to less inclusive):

     Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species

where ">" implies larger than in terms of what species are contained within a given taxonomic category.

Taxonomic category mnemonics can be found here.

See, e.g., animal phyla.