class Sporozoa vs subclass Cnidosporidia

class Sporozoa and subclass Cnidosporidia both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Sporozoa	Yes	No	No	No
subclass Cnidosporidia	Yes	No	No	No

class Sporozoa (noun)	subclass Cnidosporidia (noun)
strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites	single-host parasites of lower vertebrates and invertebrates