class Bivalvia vs Bivalvia

class Bivalvia and Bivalvia both are nouns.

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

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

Other synonyms of class Bivalvia include class Lamellibranchia, class Pelecypoda, Lamellibranchia.

class Bivalvia (noun)	Bivalvia (noun)
oysters, clams, scallops, mussels	oysters, clams, scallops, mussels