class Lamellibranchia vs class Bivalvia

class Lamellibranchia and class Bivalvia both are nouns.

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

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

class Lamellibranchia and class Bivalvia: oysters, clams, scallops, mussels

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

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