phylum Pogonophora vs phylum

phylum Pogonophora and phylum both are nouns.

Word	Noun	Adjective	Verb	Adverb
phylum Pogonophora	Yes	No	No	No
phylum	Yes	No	No	No

As nouns, phylum is a hypernym of phylum Pogonophora; that is, phylum is a word with a broader meaning than phylum Pogonophora:

phylum Pogonophora: beard worms
phylum: (biology) the major taxonomic group of animals and plants; contains classes

phylum Pogonophora (noun)	phylum (noun)
beard worms	(biology) the major taxonomic group of animals and plants; contains classes
	(linguistics) a large group of languages that are historically related