foraminifer vs rhizopodan

foraminifer and rhizopodan both are nouns.

Word	Noun	Adjective	Verb	Adverb
foraminifer	Yes	No	No	No
rhizopodan	Yes	No	No	No

As nouns, rhizopodan is a hypernym of foraminifer; that is, rhizopodan is a word with a broader meaning than foraminifer:

foraminifer: marine microorganism having a calcareous shell with openings where pseudopods protrude
rhizopodan: protozoa characterized by a pseudopod

Other hypernyms of foraminifer include rhizopod.

foraminifer (noun)	rhizopodan (noun)
marine microorganism having a calcareous shell with openings where pseudopods protrude	protozoa characterized by a pseudopod