Subphylum

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Life Domain Kingdom Phylum Class Order Family Genus Species
The hierarchy of biological classification's eight major taxonomic ranks. Intermediate minor rankings are not shown.

In zoological nomenclature, a subphylum is a taxonomic rank below the rank of phylum.

The taxonomic rank of "subdivision" in fungi and plant taxonomy is equivalent to "subphylum" in zoological taxonomy. Some plant taxonomists have also used the rank of subphylum, for instance monocotyledons as a subphylum of phylum Angiospermae.[1]

Taxonomic rank

Subphylum is:

  1. subordinate to the phylum
  2. superordinate to the infraphylum.

Where convenient, subphyla in turn may be divided into infraphyla; in turn such an infraphylum also would be superordinate to any classes or superclasses in the hierarchy.

Examples

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

Examples of infraphyla include the Mycetozoa and the Gnathostomata.

References

Bibliography

  • Hutchinson, John (1973). The families of flowering plants, arranged according to a new system based on their probable phylogeny. 2 vols (3rd ed.). Oxford University Press.
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