class Bivalvia vs Lamellibranchia

class Bivalvia and Lamellibranchia both are nouns.

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

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

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

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