class Actinozoa vs Madreporaria

class Actinozoa and Madreporaria both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Actinozoa	Yes	No	No	No
Madreporaria	Yes	No	No	No

class Actinozoa (noun)	Madreporaria (noun)
a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed	stony corals