superfamily Tyrannidae vs Tyrannidae

superfamily Tyrannidae and Tyrannidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
superfamily Tyrannidae	Yes	No	No	No
Tyrannidae	Yes	No	No	No

As nouns, superfamily Tyrannidae and Tyrannidae are synonyms defined as:

superfamily Tyrannidae and Tyrannidae: New World tyrant flycatchers most numerous in Central America and South America but also in the United States and Canada

superfamily Tyrannidae (noun)	Tyrannidae (noun)
New World tyrant flycatchers most numerous in Central America and South America but also in the United States and Canada	New World tyrant flycatchers most numerous in Central America and South America but also in the United States and Canada