Sauromalus obesus vs iguanid

Sauromalus obesus and iguanid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sauromalus obesus	Yes	No	No	No
iguanid	Yes	No	No	No

As nouns, iguanid is a hypernym of Sauromalus obesus; that is, iguanid is a word with a broader meaning than Sauromalus obesus:

Sauromalus obesus: a herbivorous lizard that lives among rocks in the arid parts of southwestern United States and Mexico
iguanid: lizards of the New World and Madagascar and some Pacific islands; typically having a long tail and bright throat patch in males

Other hypernyms of Sauromalus obesus include iguanid lizard.

Sauromalus obesus (noun)	iguanid (noun)
a herbivorous lizard that lives among rocks in the arid parts of southwestern United States and Mexico	lizards of the New World and Madagascar and some Pacific islands; typically having a long tail and bright throat patch in males