Pseudoryx vs mammal genus

Pseudoryx and mammal genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pseudoryx	Yes	No	No	No
mammal genus	Yes	No	No	No

As nouns, mammal genus is a hypernym of Pseudoryx; that is, mammal genus is a word with a broader meaning than Pseudoryx:

Pseudoryx: species of large cow-like mammals of Vietnam discovered by scientists in 1992
mammal genus: a genus of mammals

Pseudoryx (noun)	mammal genus (noun)
species of large cow-like mammals of Vietnam discovered by scientists in 1992	a genus of mammals