class Ciliophora vs subclass Infusoria

class Ciliophora and subclass Infusoria both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Ciliophora	Yes	No	No	No
subclass Infusoria	Yes	No	No	No

class Ciliophora (noun)	subclass Infusoria (noun)
class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle	in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter