Gastropoda vs class Gasteropoda

Gastropoda and class Gasteropoda both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gastropoda	Yes	No	No	No
class Gasteropoda	Yes	No	No	No

As nouns, Gastropoda and class Gasteropoda are synonyms defined as:

Other synonyms of Gastropoda include class Gastropoda, Gasteropoda.

Gastropoda (noun)	class Gasteropoda (noun)
snails and slugs and their relatives	snails and slugs and their relatives