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The Info List - Infraphylum


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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. Taxonomic rank[edit] Subphylum is:

subordinate to the phylum 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[edit] Not all fauna phyla are divided into subphyla. Those that are include:

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

Examples of infraphyla include the Mycetozoa
Mycetozoa
and the Gnathostomata.

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Taxonomic ranks

Domain/Superkingdom Kingdom Subkingdom Infrakingdom/Branch

Superphylum/Superdivision Phylum/Division Subphylum Infraphylum Microphylum

Superclass Class Subclass Infraclass Parvclass

Legion Cohort

Magnorder Superorder Order Suborder Infraorder Parvorder

Section (zoo.) Superfamily Family Subfamily

Supertribe Tribe Subtribe

Genus Subgenus Section (bot.) Series (bot.)

Species Subspecies Variety Form

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