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In life, a subphylum is a taxonomic rank intermediate between phylum and superclass. The rank of subdivision in plants and fungi is equivalent to subphylum.

Not all phyla are divided into subphyla. Those that are include:

  • Arthropoda: divided into subphyla Trilobitomorpha, Chelicerata, Myriapoda, Hexapoda and Crustacea,
  • Brachiopoda: divided into subphyla Linguliformea, Craniformea and Rhychonelliformea,
  • Chordata: divided into Urochordata, Cephalochordata, and its largest subphylum Vertebrata.

Template:Taxanomic ranks

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