Chytridiomycetes vs class Chytridiomycetes

Chytridiomycetes and class Chytridiomycetes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chytridiomycetes	Yes	No	No	No
class Chytridiomycetes	Yes	No	No	No

As nouns, Chytridiomycetes and class Chytridiomycetes are synonyms defined as:

Chytridiomycetes and class Chytridiomycetes: a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants

Chytridiomycetes (noun)	class Chytridiomycetes (noun)
a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants	a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants