noun (plural subphyla /-ˌfīlə/)Zoology
A taxonomic category that ranks below phylum and above class.
- To give the idea of a subphylum, the entire Vertebrata are in the Linnean arrangement a subphylum of the phylum Chordata.
- I'm animal, my phylum is chordata, my subphylum is vertebrate, my class is mammals, sublass theria, infraclass eutheria, within that I'm a primate, and within that I'm human.
- These aren't just distinct species but distinct phyla, categories so large that man and bat occupy not only the same phylum but the same subphylum.
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