genus Apatosaurus vs genus Brontosaurus

genus Apatosaurus and genus Brontosaurus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Apatosaurus	Yes	No	No	No
genus Brontosaurus	Yes	No	No	No

As nouns, genus Apatosaurus and genus Brontosaurus are synonyms defined as:

genus Apatosaurus and genus Brontosaurus: large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic

genus Apatosaurus (noun)	genus Brontosaurus (noun)
large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic	large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic