fence lizard vs spiny lizard

fence lizard and spiny lizard both are nouns.

Word	Noun	Adjective	Verb	Adverb
fence lizard	Yes	No	No	No
spiny lizard	Yes	No	No	No

As nouns, spiny lizard is a hypernym of fence lizard; that is, spiny lizard is a word with a broader meaning than fence lizard:

fence lizard: spiny lizard often seen basking on fences in the United States and northern Mexico
spiny lizard: any of numerous lizards with overlapping ridged pointed scales; of North America and Central America

fence lizard (noun)	spiny lizard (noun)
spiny lizard often seen basking on fences in the United States and northern Mexico	any of numerous lizards with overlapping ridged pointed scales; of North America and Central America
	desert lizard that feeds on ants