genus Protoavis vs protoavis

genus Protoavis and protoavis both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Protoavis	Yes	No	No	No
protoavis	Yes	No	No	No

genus Protoavis (noun)	protoavis (noun)
extinct primitive birds of the Triassic period; 70 million years before archaeopteryx	most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbs