class Magnoliopsida vs subclass Caryophyllidae

class Magnoliopsida and subclass Caryophyllidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Magnoliopsida	Yes	No	No	No
subclass Caryophyllidae	Yes	No	No	No

class Magnoliopsida (noun)	subclass Caryophyllidae (noun)
comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive), Caryophyllidae (an early and distinctive offshoot), and three more or less advanced groups: Dilleniidae, Rosidae, Asteridae	a group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks), Aizoaceae, Amaranthaceae, Batidaceae, Chenopodiaceae, Cactaceae (order Opuntiales), Nyctaginaceae, Phytolaccaceae